{"title":"M5531 Series","description":"","products":[{"product_id":"numaker-m5531","title":"NuMaker-M5531","description":"\u003ch5\u003eM5531 Series\u003c\/h5\u003e\u003cp\u003eThe M5531 series microcontrollers feature an Arm\u003csup\u003e®\u003c\/sup\u003e Cortex\u003csup\u003e®\u003c\/sup\u003e-M55 core running at up to 220 MHz, equipped with Arm\u003csup\u003e®\u003c\/sup\u003e Helium\u003csup\u003e™\u003c\/sup\u003e DSP technology for enhanced digital signal processing capabilities. These MCUs integrate up to 2 MB of Flash Memory and 1.5 MB of SRAM, and support the HYPERBUS\u003csup\u003e™\u003c\/sup\u003e interface for external memory expansion. Operating at voltages from 1.7V to 3.6V and temperatures from -40°C to +105°C, the M5531 series is well-suited for demanding industrial environments.\u003c\/p\u003e\u003cp\u003eThey are ideal for compute-intensive embedded applications such as real-time signal processing, high-performance control systems, sensor fusion, smart factory automation, medical devices, and communication systems.\u003c\/p\u003e\u003ch5\u003eNuMaker-M5531 Development Board\u003c\/h5\u003e\u003cp\u003eNuMaker-M5531 is a development platform built on the NuMicro\u003csup\u003e®\u003c\/sup\u003e M5531 series microcontroller. This development board integrates essential system components and a wide range of peripheral interfaces, helping accelerate system design and the evaluation of prototyping.\u003c\/p\u003e\u003cp\u003eThe NuMaker-M5531 target board provides Arduino UNO-compatible headers, multiple GPIOs, and common communication interfaces such as I²C, UART, and SPI. The onboard Nu-Link2-Me debugger and programmer supports the SWD interface, enabling both online and offline programming, as well as in-chip debugging. It also outputs debug messages to a PC via a virtual COM port (VCOM). In addition, the built-in status LED displays programming status in real time. The Nu-Link2-Me module is detachable and can be used independently as a production programming tool.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/0749\/7934\/files\/nuvoton-numaker-m5531.png?v=1784108908\" alt=\"Nuvoton-NuMaker-M5531\" height=\"387\"\u003e\u003c\/p\u003e\u003ch5\u003eTechnical Documents\u003c\/h5\u003e\u003cul\u003e\u003cli\u003eFor more details, please visit Nuvoton Official Website: \u003ca href=\"https:\/\/www.nuvoton.com\/board\/numaker-m5531\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eGO\u003c\/a\u003e\n\u003c\/li\u003e\u003c\/ul\u003e","brand":"Nuvoton Direct","offers":[{"title":"Default Title","offer_id":48299243339982,"sku":"NK-M5531","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/0749\/7934\/files\/1736_4426f521-a3c6-4946-9927-ab12ba93848e.png?v=1784108938"},{"product_id":"m5531r2ljae-1","title":"M5531R2LJAE","description":"\u003cp\u003eThe NuMicro\u003csup\u003e®\u003c\/sup\u003e M5531 series stands as a powerful microcontroller (MCU), purpose-built to deliver lifted performance in digital signal processing. This strength is effectively enabled by its Arm\u003csup\u003e®\u003c\/sup\u003e Cortex\u003csup\u003e®\u003c\/sup\u003e-M55 processor, at speed of up to 220 MHz. Its operating voltage ranges from 1.71V to 3.6V while its operating temperature ranges from -40°C to +105°C.\u003c\/p\u003e\n\u003ch5\u003eEnhanced compute capability\u003c\/h5\u003e\n\u003cp\u003eThis M5531 series incorporates up to 1.5 MB of SRAM and 2 MB of Flash Memory directly on the chip, along with SPIM interfaces for accommodating expanded RAM and ROM requirements. Its abundant compute resources, including DSP extensions, vector extensions (Helium), double-precision FPU, 2 sets of 16-channel PDMA controllers, 1 set of 2-channel GDMA(Graphic Direct Memory Access) controller, and ample SRAM and Flash Memories, make it ideal for compute-intensive embedded applications like real-time signal processing, high-performance control systems, sensor fusion, industrial automation, and communication systems.\u003c\/p\u003e\n\u003ch5\u003eStrengthened security measures\u003c\/h5\u003e\n\u003cp\u003eSecurity is another pivotal consideration for the M5531 series, featuring advanced security features such as secure boot, Arm TrustZone\u003csup\u003e®\u003c\/sup\u003e, true random number generator (TRNG), key derivation function (KDF), key store, AES\/ECC\/RSA\/SHA\/HMAC cryptography accelerators, and Arm PSA Certified\u003csup\u003eTM\u003c\/sup\u003e Level 2 compliance. These robust security measures significantly enhance the security and integrity of systems built with the M5531 series.\u003c\/p\u003e\n\u003ch5\u003eAbundant control functions\u003c\/h5\u003e\n\u003cp\u003eFor analog and control functions, the M5531 series implements 2 sets of 12-bit SAR ADC, 2 sets of 12-bit 1 Msps DAC, 4 sets of analog comparators (ACMP), 1 set of built-in temperature sensor, 1 set of internal voltage reference generator, up to 24-channel PWM outputs, 4 sets of QEI, and 4 sets of input capture units.\u003c\/p\u003e\n\u003ch5\u003eRich connectivity peripherals\u003c\/h5\u003e\n\u003cp\u003eThe M5531 series also provides a wide array of communication and peripheral interfaces, including one set of Universal Serial Control Interface (USCI), which can be configured as UART\/SPI\/I²C with flexibility, 10 sets of UART, 4 sets of SPI\/I²S, 4 sets of I²C, 1 set of I3C, 2 sets of CAN FD, 2 sets of QSPI, 2 sets of independent I²S, 1 set of USB 2.0 high-speed OTG\/Host\/Device with PD (Power Delivery) function and supporting USB Type-C connector, 1 set of USB 2.0 full-speed OTG\/Host\/Device, 1 set of 10\/100 Ethernet MAC with RMII interface, 1 set of 8-bit parallel image sensor interface (CCAP), 1 set of 4-channel PDM microphone interface controller (DMIC), 3 sets of ISO-7816-3 smart card interfaces, and 2 sets of SDIO.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePackage\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/m5531r2ljae\/\" rel=\"noopener\" target=\"_blank\"\u003eM5531R2LJAE\u003c\/a\u003e：LQFP64 (10 × 10 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/m5531k2ljae\/\" rel=\"noopener\" target=\"_blank\"\u003eM5531K2LJAE\u003c\/a\u003e：LQFP128 (14 × 14 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/m5531h2ljae\/\" rel=\"noopener\" target=\"_blank\"\u003eM5531H2LJAE\u003c\/a\u003e：LQFP176 (24 × 24 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable style=\"width: 100%; table-layout: fixed; white-space: nowrap;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eUART\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eI²C\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eI3C\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eSPI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eQSPI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eUSCI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e10 + 5\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4 + 2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4 + 2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAN FD\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eFS USB\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eHS USB\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eEthernet\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003ePSIO\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eSDIO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e8-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eI²S\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003ePWM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eADC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eDAC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eACMP\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e2 + 4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e24-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e48-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eSmart\u003cbr\u003eCard\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eDMIC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eCCAP\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eQEI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003ePDMA\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e32-ch\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eTable 1‑1 NuMicro M5531 Series Key Features Support Table\u003c\/p\u003e\n\u003cp\u003eThe M5531 series benefits design of a wide range of applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIIOT\u003c\/li\u003e\n\u003cli\u003eIndustrial Automation\u003c\/li\u003e\n\u003cli\u003eHuman Machine Interface\u003c\/li\u003e\n\u003cli\u003eCommunication Systems\u003c\/li\u003e\n\u003cli\u003eSensor Fusion\u003c\/li\u003e\n\u003cli\u003eSmart Appliances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Characteristics\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage range: 1.71V to 3.6V\u003c\/li\u003e\n\u003cli\u003eTemperature range: -40°C to +105°C\u003c\/li\u003e\n\u003cli\u003eESD HBM ±3 kV\u003c\/li\u003e\n\u003cli\u003eEFT ±4.4 kV\u003c\/li\u003e\n\u003cli\u003eLatch Up: ±200 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eArm Cortex-M55 core, running up to 220 MHz\u003c\/li\u003e\n\u003cli\u003eArm M-profile vector extension enabled (Helium)\u003c\/li\u003e\n\u003cli\u003eIEEE 754 compliant floating-point unit (FPU) supporting vector and scalar half-, single-, and double-precision floating-point calculations\u003c\/li\u003e\n\u003cli\u003eArm TrustZone technology including an 8-region secure memory protection unit and an 8-region non-secure memory protection unit\u003c\/li\u003e\n\u003cli\u003eArm custom instructions (ACI) implemented for accelerating specific math operations\u003c\/li\u003e\n\u003cli\u003eL1 cache: 16 KB instruction cache (I-cache) and 16 KB data cache (D-cache)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemories\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSecure Boot ROM (MaskROM): 24 KB\u003c\/li\u003e\n\u003cli\u003eAPROM Flash: 2 MB (dual banks of 1MB each)\u003c\/li\u003e\n\u003cli\u003eLDROM Flash: 8 KB\u003c\/li\u003e\n\u003cli\u003eOTP Flash: 3 KB\u003c\/li\u003e\n\u003cli\u003eXOM (Execution-only memory): 4 regions\u003c\/li\u003e\n\u003cli\u003eSRAM0: 512 KB\u003c\/li\u003e\n\u003cli\u003eSRAM1: 512 KB\u003c\/li\u003e\n\u003cli\u003eSRAM2: 320 KB\u003c\/li\u003e\n\u003cli\u003eSRAM3: 8 KB\u003c\/li\u003e\n\u003cli\u003eLPSRAM: 8 KB\u003c\/li\u003e\n\u003cli\u003eI-TCM(Tightly Coupled Memory) : 64 KB\u003c\/li\u003e\n\u003cli\u003eD-TCM(Tightly Coupled Memory) : 128 KB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Memory Interface\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSPIM (with HyperBus interface) supporting SPI Flash, QSPI, OSPI, and HyperFlash memories up to 32 MB, featuring AES on-the-fly decryption\u003c\/li\u003e\n\u003cli\u003eExternal bus interface (EBI) supporting 8- or 16-bit data width, i80 mode LCD interface, and up to three sets of 1 MB memory banks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClocks\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e4~32 MHz high-speed external crystal oscillator\u003c\/li\u003e\n\u003cli\u003e32.768 kHz low-speed external crystal oscillator\u003c\/li\u003e\n\u003cli\u003e48 MHz high-speed internal RC oscillator\u003c\/li\u003e\n\u003cli\u003e12 MHz high-speed internal RC oscillator with 2% deviation\u003c\/li\u003e\n\u003cli\u003e1~8 MHz high-speed internal RC oscillator\u003c\/li\u003e\n\u003cli\u003e32 kHz low-speed internal RC oscillator\u003c\/li\u003e\n\u003cli\u003e2 sets of programmable APLL, up to 480 MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Memory Access (DMA)\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e2 sets of 16-channel PDMA controllers\u003c\/li\u003e\n\u003cli\u003e1 set of 2-channel GDMA(Graphic Direct Memory Access) controller (DMA-350)\u003c\/li\u003e\n\u003cli\u003e1 set of 4-channel LPPDMA controller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecurity Functions\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSecure Boot\u003c\/li\u003e\n\u003cli\u003eKey derivation function (KDF)\u003c\/li\u003e\n\u003cli\u003eCryptography accelerator including algorithms up to AES-256, ECC-571, SHA-512, HMAC-512, RSA-4096, and a pseudo random number generator (PRNG)\u003c\/li\u003e\n\u003cli\u003eTrue random number generator (TRNG)\u003c\/li\u003e\n\u003cli\u003eKey store module for key management, including a dedicated Key store SRAM buffer\u003c\/li\u003e\n\u003cli\u003eFour eXecute-Only-Memory (XOM) regions for code protection\u003c\/li\u003e\n\u003cli\u003eWrite protection in Flash memory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Management\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eActive power: 94.5 μA\/MHz at 220MHz\u003c\/li\u003e\n\u003cli\u003eNormal power-down (NPD4) with 64 KB SRAM retention: 12.5 μA at 3.0V\u003c\/li\u003e\n\u003cli\u003eStandby power-down (SPD1) with 64 KB SRAM retention: 6.1 μA at 3.0V (SRAM retention up to 64\/128\/192\/256\/320\/384\/448\/512 KB)\u003c\/li\u003e\n\u003cli\u003eDeep power-down (RTC on): 0.64 μA at 3.0V (LIRC)\u003c\/li\u003e\n\u003cli\u003eRTC (V\u003csub\u003eBAT\u003c\/sub\u003e): 0.36 μA\u003c\/li\u003e\n\u003cli\u003ePower-on reset\u003c\/li\u003e\n\u003cli\u003eBrown-out reset\u003c\/li\u003e\n\u003cli\u003eLow voltage reset\u003c\/li\u003e\n\u003cli\u003eBuilt-in LDO voltage regulators\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimer and Control Peripheral\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e4 sets of 32-bit timers, supporting PWM function\u003c\/li\u003e\n\u003cli\u003e2 sets of 32-bit low power timers, supporting PWM function\u003c\/li\u003e\n\u003cli\u003e2 sets of tick timers\u003c\/li\u003e\n\u003cli\u003e1 set of 24-bit count-down SysTick timer\u003c\/li\u003e\n\u003cli\u003e2 sets of watchdog timers\u003c\/li\u003e\n\u003cli\u003e2 sets of window watchdog timers\u003c\/li\u003e\n\u003cli\u003eUp to 12 enhanced PWM (EPWM) outputs generated by twelve 16-bit counters\u003c\/li\u003e\n\u003cli\u003eUp to 12 basic PWM (BPWM) outputs generated by two 16-bit counters\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of enhanced quadrature encoder interfaces (EQEI)\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of enhanced input capture unit (ECAP)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity Interfaces\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 10 sets of UART interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPUART interface\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of I²C interfaces, up to 1 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPI2C interface, up to 1 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of I3C interface, up to 25 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of SPI\/I²S interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPSPI interface\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of Quad-SPI interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of USCI, supporting UART\/I²C\/SPI\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of SDIO interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 3 sets of ISO-7816-3 smart card interfaces, supporting UART\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of I²S interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of 8-ch programmable serial I\/O (PSIO) interface\u003c\/li\u003e\n\u003cli\u003eDMIC (Digital microphone inputs), supporting 4-channel PDM interface and voice activity detection (VAD)\u003c\/li\u003e\n\u003cli\u003e6x8 Keypad Interface (KPI)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Connectivity\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 2 sets of CAN FD interfaces\u003c\/li\u003e\n\u003cli\u003eUSB 2.0 high speed device\/host\/OTG controller with dedicated DMA and on-chip PHY, supporting power delivery (PD) function\u003c\/li\u003e\n\u003cli\u003eUSB 2.0 full speed device\/host\/OTG controller with on-chip PHY, supporting crystal-less at device mode\u003c\/li\u003e\n\u003cli\u003e10\/100 Ethernet MAC with RMII interface, supporting IEEE 1588 v2 precision time protocol\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Peripherals\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eLPSRAM: 8 KB\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPUART interface\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPI²C interface, up to 1 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPSPI interface\u003c\/li\u003e\n\u003cli\u003e1 set of 4-channel LPPDMA controller\u003c\/li\u003e\n\u003cli\u003e2 sets of 32-bit low power timers, supporting PWM function\u003c\/li\u003e\n\u003cli\u003e1 set of 12-bit, up to 24-ch, 2 Msps SAR LPADC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Capture Interface Controller (CCAP)\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eResolution up to 640x480 pixels\u003c\/li\u003e\n\u003cli\u003eSupports motion detection engine with 320x240 image data in Power-down mode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Peripherals\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e1 set of 12-bit, up to 24-channel, 5 Msps SAR ADC\u003c\/li\u003e\n\u003cli\u003e1 set of 12-bit, up to 24-channel, 2 Msps SAR LPADC\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of 12-bit, 1 Msps buffered DAC\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of analog comparators (ACMP)\u003c\/li\u003e\n\u003cli\u003eBuilt-in internal reference voltage\u003c\/li\u003e\n\u003cli\u003eBuilt-in temperature sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCyclic Redundancy Calculation (CRC)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal Time Clock (RTC), Tamper and V\u003csub\u003eBAT\u003c\/sub\u003e Power Domain\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSupports independent V\u003csub\u003eBAT\u003c\/sub\u003e power pin for RTC and tamper detection\u003c\/li\u003e\n\u003cli\u003eSupports calendar RTC\u003c\/li\u003e\n\u003cli\u003eBackup registers: 80 bytes\u003c\/li\u003e\n\u003cli\u003eTamper detection: 6 pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Features\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 142 GPIO with interrupt capability\u003c\/li\u003e\n\u003cli\u003eGPIO with internal pull-up \/ pull-down resistor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e96-bit Unique ID (UID)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e128-bit Unique Customer ID (UCID)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003ePackage is Halogen-free, RoHS-compliant and TSCA-compliant.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable style=\"width: 100%; table-layout: fixed; white-space: nowrap;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003ePin Count\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e176\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e128\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLQFP\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLQFP\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLQFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eI\/O Pin\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e142\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e97\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e39\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eLead Pitch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.5\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eDimensions \u003cbr\u003e(mm)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e24 x 24\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e14 x 14\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e10 x 10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDevelopment Environment:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eProgramming IDE: Keil MDK, IAR, NuEclipse (GCC), VSCode\u003c\/li\u003e\n\u003cli\u003eDevelopment IDE: NuTool PinConfigure, NuTool Pin-View, NuTool-ClockConfig, NuConsole\u003c\/li\u003e\n\u003cli\u003eRTOS: FreeRTOS, Zephyr, RT-Thread\u003c\/li\u003e\n\u003cli\u003eGUI Library: emWin, LVGL, Qt for MCU\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvaluation Board\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eNuMaker-M5531\n\u003cul\u003e\n\u003cli\u003eSupported Devices: M5531H2LJAE M5531K2LJAE M5531R2LJAE\u003c\/li\u003e\n\u003cli\u003eFeature: Support USB HS, Expand Connector, and Arduino UNO Interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Documents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFor more details, please visit Nuvoton Official Website: \u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eGO\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nuvoton Direct","offers":[{"title":"Tray","offer_id":43609556943054,"sku":"M5531R2LJAE","price":5.25,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/0749\/7934\/files\/1745_77d6ce05-8a1b-4917-9ab1-2e51e24ae36e.png?v=1784109056"},{"product_id":"m5531h2ljae","title":"M5531H2LJAE","description":"\u003cp\u003eThe NuMicro\u003csup\u003e®\u003c\/sup\u003e M5531 series stands as a powerful microcontroller (MCU), purpose-built to deliver lifted performance in digital signal processing. This strength is effectively enabled by its Arm\u003csup\u003e®\u003c\/sup\u003e Cortex\u003csup\u003e®\u003c\/sup\u003e-M55 processor, at speed of up to 220 MHz. Its operating voltage ranges from 1.71V to 3.6V while its operating temperature ranges from -40°C to +105°C.\u003c\/p\u003e\n\u003ch5\u003eEnhanced compute capability\u003c\/h5\u003e\n\u003cp\u003eThis M5531 series incorporates up to 1.5 MB of SRAM and 2 MB of Flash Memory directly on the chip, along with SPIM interfaces for accommodating expanded RAM and ROM requirements. Its abundant compute resources, including DSP extensions, vector extensions (Helium), double-precision FPU, 2 sets of 16-channel PDMA controllers, 1 set of 2-channel GDMA(Graphic Direct Memory Access) controller, and ample SRAM and Flash Memories, make it ideal for compute-intensive embedded applications like real-time signal processing, high-performance control systems, sensor fusion, industrial automation, and communication systems.\u003c\/p\u003e\n\u003ch5\u003eStrengthened security measures\u003c\/h5\u003e\n\u003cp\u003eSecurity is another pivotal consideration for the M5531 series, featuring advanced security features such as secure boot, Arm TrustZone\u003csup\u003e®\u003c\/sup\u003e, true random number generator (TRNG), key derivation function (KDF), key store, AES\/ECC\/RSA\/SHA\/HMAC cryptography accelerators, and Arm PSA Certified\u003csup\u003eTM\u003c\/sup\u003e Level 2 compliance. These robust security measures significantly enhance the security and integrity of systems built with the M5531 series.\u003c\/p\u003e\n\u003ch5\u003eAbundant control functions\u003c\/h5\u003e\n\u003cp\u003eFor analog and control functions, the M5531 series implements 2 sets of 12-bit SAR ADC, 2 sets of 12-bit 1 Msps DAC, 4 sets of analog comparators (ACMP), 1 set of built-in temperature sensor, 1 set of internal voltage reference generator, up to 24-channel PWM outputs, 4 sets of QEI, and 4 sets of input capture units.\u003c\/p\u003e\n\u003ch5\u003eRich connectivity peripherals\u003c\/h5\u003e\n\u003cp\u003eThe M5531 series also provides a wide array of communication and peripheral interfaces, including one set of Universal Serial Control Interface (USCI), which can be configured as UART\/SPI\/I²C with flexibility, 10 sets of UART, 4 sets of SPI\/I²S, 4 sets of I²C, 1 set of I3C, 2 sets of CAN FD, 2 sets of QSPI, 2 sets of independent I²S, 1 set of USB 2.0 high-speed OTG\/Host\/Device with PD (Power Delivery) function and supporting USB Type-C connector, 1 set of USB 2.0 full-speed OTG\/Host\/Device, 1 set of 10\/100 Ethernet MAC with RMII interface, 1 set of 8-bit parallel image sensor interface (CCAP), 1 set of 4-channel PDM microphone interface controller (DMIC), 3 sets of ISO-7816-3 smart card interfaces, and 2 sets of SDIO.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePackage\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/m5531r2ljae\/\" rel=\"noopener\" target=\"_blank\"\u003eM5531R2LJAE\u003c\/a\u003e：LQFP64 (10 × 10 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/m5531k2ljae\/\" rel=\"noopener\" target=\"_blank\"\u003eM5531K2LJAE\u003c\/a\u003e：LQFP128 (14 × 14 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/m5531h2ljae\/\" rel=\"noopener\" target=\"_blank\"\u003eM5531H2LJAE\u003c\/a\u003e：LQFP176 (24 × 24 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable style=\"width: 100%; table-layout: fixed; white-space: nowrap;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eUART\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eI²C\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eI3C\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eSPI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eQSPI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eUSCI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e10 + 5\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4 + 2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4 + 2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAN FD\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eFS USB\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eHS USB\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eEthernet\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003ePSIO\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eSDIO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e8-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eI²S\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003ePWM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eADC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eDAC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eACMP\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e2 + 4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e24-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e48-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eSmart\u003cbr\u003eCard\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eDMIC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eCCAP\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eQEI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003ePDMA\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e32-ch\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eTable 1‑1 NuMicro M5531 Series Key Features Support Table\u003c\/p\u003e\n\u003cp\u003eThe M5531 series benefits design of a wide range of applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIIOT\u003c\/li\u003e\n\u003cli\u003eIndustrial Automation\u003c\/li\u003e\n\u003cli\u003eHuman Machine Interface\u003c\/li\u003e\n\u003cli\u003eCommunication Systems\u003c\/li\u003e\n\u003cli\u003eSensor Fusion\u003c\/li\u003e\n\u003cli\u003eSmart Appliances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Characteristics\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage range: 1.71V to 3.6V\u003c\/li\u003e\n\u003cli\u003eTemperature range: -40°C to +105°C\u003c\/li\u003e\n\u003cli\u003eESD HBM ±3 kV\u003c\/li\u003e\n\u003cli\u003eEFT ±4.4 kV\u003c\/li\u003e\n\u003cli\u003eLatch Up: ±200 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eArm Cortex-M55 core, running up to 220 MHz\u003c\/li\u003e\n\u003cli\u003eArm M-profile vector extension enabled (Helium)\u003c\/li\u003e\n\u003cli\u003eIEEE 754 compliant floating-point unit (FPU) supporting vector and scalar half-, single-, and double-precision floating-point calculations\u003c\/li\u003e\n\u003cli\u003eArm TrustZone technology including an 8-region secure memory protection unit and an 8-region non-secure memory protection unit\u003c\/li\u003e\n\u003cli\u003eArm custom instructions (ACI) implemented for accelerating specific math operations\u003c\/li\u003e\n\u003cli\u003eL1 cache: 16 KB instruction cache (I-cache) and 16 KB data cache (D-cache)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemories\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSecure Boot ROM (MaskROM): 24 KB\u003c\/li\u003e\n\u003cli\u003eAPROM Flash: 2 MB (dual banks of 1MB each)\u003c\/li\u003e\n\u003cli\u003eLDROM Flash: 8 KB\u003c\/li\u003e\n\u003cli\u003eOTP Flash: 3 KB\u003c\/li\u003e\n\u003cli\u003eXOM (Execution-only memory): 4 regions\u003c\/li\u003e\n\u003cli\u003eSRAM0: 512 KB\u003c\/li\u003e\n\u003cli\u003eSRAM1: 512 KB\u003c\/li\u003e\n\u003cli\u003eSRAM2: 320 KB\u003c\/li\u003e\n\u003cli\u003eSRAM3: 8 KB\u003c\/li\u003e\n\u003cli\u003eLPSRAM: 8 KB\u003c\/li\u003e\n\u003cli\u003eI-TCM(Tightly Coupled Memory) : 64 KB\u003c\/li\u003e\n\u003cli\u003eD-TCM(Tightly Coupled Memory) : 128 KB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Memory Interface\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSPIM (with HyperBus interface) supporting SPI Flash, QSPI, OSPI, and HyperFlash memories up to 32 MB, featuring AES on-the-fly decryption\u003c\/li\u003e\n\u003cli\u003eExternal bus interface (EBI) supporting 8- or 16-bit data width, i80 mode LCD interface, and up to three sets of 1 MB memory banks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClocks\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e4~32 MHz high-speed external crystal oscillator\u003c\/li\u003e\n\u003cli\u003e32.768 kHz low-speed external crystal oscillator\u003c\/li\u003e\n\u003cli\u003e48 MHz high-speed internal RC oscillator\u003c\/li\u003e\n\u003cli\u003e12 MHz high-speed internal RC oscillator with 2% deviation\u003c\/li\u003e\n\u003cli\u003e1~8 MHz high-speed internal RC oscillator\u003c\/li\u003e\n\u003cli\u003e32 kHz low-speed internal RC oscillator\u003c\/li\u003e\n\u003cli\u003e2 sets of programmable APLL, up to 480 MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Memory Access (DMA)\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e2 sets of 16-channel PDMA controllers\u003c\/li\u003e\n\u003cli\u003e1 set of 2-channel GDMA(Graphic Direct Memory Access) controller (DMA-350)\u003c\/li\u003e\n\u003cli\u003e1 set of 4-channel LPPDMA controller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecurity Functions\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSecure Boot\u003c\/li\u003e\n\u003cli\u003eKey derivation function (KDF)\u003c\/li\u003e\n\u003cli\u003eCryptography accelerator including algorithms up to AES-256, ECC-571, SHA-512, HMAC-512, RSA-4096, and a pseudo random number generator (PRNG)\u003c\/li\u003e\n\u003cli\u003eTrue random number generator (TRNG)\u003c\/li\u003e\n\u003cli\u003eKey store module for key management, including a dedicated Key store SRAM buffer\u003c\/li\u003e\n\u003cli\u003eFour eXecute-Only-Memory (XOM) regions for code protection\u003c\/li\u003e\n\u003cli\u003eWrite protection in Flash memory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Management\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eActive power: 94.5 μA\/MHz at 220MHz\u003c\/li\u003e\n\u003cli\u003eNormal power-down (NPD4) with 64 KB SRAM retention: 12.5 μA at 3.0V\u003c\/li\u003e\n\u003cli\u003eStandby power-down (SPD1) with 64 KB SRAM retention: 6.1 μA at 3.0V (SRAM retention up to 64\/128\/192\/256\/320\/384\/448\/512 KB)\u003c\/li\u003e\n\u003cli\u003eDeep power-down (RTC on): 0.64 μA at 3.0V (LIRC)\u003c\/li\u003e\n\u003cli\u003eRTC (V\u003csub\u003eBAT\u003c\/sub\u003e): 0.36 μA\u003c\/li\u003e\n\u003cli\u003ePower-on reset\u003c\/li\u003e\n\u003cli\u003eBrown-out reset\u003c\/li\u003e\n\u003cli\u003eLow voltage reset\u003c\/li\u003e\n\u003cli\u003eBuilt-in LDO voltage regulators\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimer and Control Peripheral\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e4 sets of 32-bit timers, supporting PWM function\u003c\/li\u003e\n\u003cli\u003e2 sets of 32-bit low power timers, supporting PWM function\u003c\/li\u003e\n\u003cli\u003e2 sets of tick timers\u003c\/li\u003e\n\u003cli\u003e1 set of 24-bit count-down SysTick timer\u003c\/li\u003e\n\u003cli\u003e2 sets of watchdog timers\u003c\/li\u003e\n\u003cli\u003e2 sets of window watchdog timers\u003c\/li\u003e\n\u003cli\u003eUp to 12 enhanced PWM (EPWM) outputs generated by twelve 16-bit counters\u003c\/li\u003e\n\u003cli\u003eUp to 12 basic PWM (BPWM) outputs generated by two 16-bit counters\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of enhanced quadrature encoder interfaces (EQEI)\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of enhanced input capture unit (ECAP)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity Interfaces\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 10 sets of UART interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPUART interface\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of I²C interfaces, up to 1 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPI2C interface, up to 1 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of I3C interface, up to 25 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of SPI\/I²S interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPSPI interface\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of Quad-SPI interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of USCI, supporting UART\/I²C\/SPI\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of SDIO interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 3 sets of ISO-7816-3 smart card interfaces, supporting UART\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of I²S interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of 8-ch programmable serial I\/O (PSIO) interface\u003c\/li\u003e\n\u003cli\u003eDMIC (Digital microphone inputs), supporting 4-channel PDM interface and voice activity detection (VAD)\u003c\/li\u003e\n\u003cli\u003e6x8 Keypad Interface (KPI)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Connectivity\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 2 sets of CAN FD interfaces\u003c\/li\u003e\n\u003cli\u003eUSB 2.0 high speed device\/host\/OTG controller with dedicated DMA and on-chip PHY, supporting power delivery (PD) function\u003c\/li\u003e\n\u003cli\u003eUSB 2.0 full speed device\/host\/OTG controller with on-chip PHY, supporting crystal-less at device mode\u003c\/li\u003e\n\u003cli\u003e10\/100 Ethernet MAC with RMII interface, supporting IEEE 1588 v2 precision time protocol\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Peripherals\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eLPSRAM: 8 KB\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPUART interface\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPI²C interface, up to 1 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPSPI interface\u003c\/li\u003e\n\u003cli\u003e1 set of 4-channel LPPDMA controller\u003c\/li\u003e\n\u003cli\u003e2 sets of 32-bit low power timers, supporting PWM function\u003c\/li\u003e\n\u003cli\u003e1 set of 12-bit, up to 24-ch, 2 Msps SAR LPADC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Capture Interface Controller (CCAP)\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eResolution up to 640x480 pixels\u003c\/li\u003e\n\u003cli\u003eSupports motion detection engine with 320x240 image data in Power-down mode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Peripherals\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e1 set of 12-bit, up to 24-channel, 5 Msps SAR ADC\u003c\/li\u003e\n\u003cli\u003e1 set of 12-bit, up to 24-channel, 2 Msps SAR LPADC\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of 12-bit, 1 Msps buffered DAC\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of analog comparators (ACMP)\u003c\/li\u003e\n\u003cli\u003eBuilt-in internal reference voltage\u003c\/li\u003e\n\u003cli\u003eBuilt-in temperature sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCyclic Redundancy Calculation (CRC)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal Time Clock (RTC), Tamper and V\u003csub\u003eBAT\u003c\/sub\u003e Power Domain\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSupports independent V\u003csub\u003eBAT\u003c\/sub\u003e power pin for RTC and tamper detection\u003c\/li\u003e\n\u003cli\u003eSupports calendar RTC\u003c\/li\u003e\n\u003cli\u003eBackup registers: 80 bytes\u003c\/li\u003e\n\u003cli\u003eTamper detection: 6 pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Features\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 142 GPIO with interrupt capability\u003c\/li\u003e\n\u003cli\u003eGPIO with internal pull-up \/ pull-down resistor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e96-bit Unique ID (UID)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e128-bit Unique Customer ID (UCID)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003ePackage is Halogen-free, RoHS-compliant and TSCA-compliant.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable style=\"width: 100%; table-layout: fixed; white-space: nowrap;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003ePin Count\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e176\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e128\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLQFP\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLQFP\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLQFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eI\/O Pin\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e142\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e97\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e39\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eLead Pitch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.5\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eDimensions \u003cbr\u003e(mm)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e24 x 24\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e14 x 14\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e10 x 10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDevelopment Environment:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eProgramming IDE: Keil MDK, IAR, NuEclipse (GCC), VSCode\u003c\/li\u003e\n\u003cli\u003eDevelopment IDE: NuTool PinConfigure, NuTool Pin-View, NuTool-ClockConfig, NuConsole\u003c\/li\u003e\n\u003cli\u003eRTOS: FreeRTOS, Zephyr, RT-Thread\u003c\/li\u003e\n\u003cli\u003eGUI Library: emWin, LVGL, Qt for MCU\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvaluation Board\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eNuMaker-M5531\n\u003cul\u003e\n\u003cli\u003eSupported Devices: M5531H2LJAE M5531K2LJAE M5531R2LJAE\u003c\/li\u003e\n\u003cli\u003eFeature: Support USB HS, Expand Connector, and Arduino UNO Interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Documents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFor more details, please visit Nuvoton Official Website: \u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eGO\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nuvoton Direct","offers":[{"title":"Tray","offer_id":43609557041358,"sku":"M5531H2LJAE","price":6.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/0749\/7934\/files\/1747_3850af17-d518-462d-8afd-7f356740ee90.png?v=1784109086"},{"product_id":"m5531k2ljae","title":"M5531K2LJAE","description":"\u003cp\u003eThe NuMicro\u003csup\u003e®\u003c\/sup\u003e M5531 series stands as a powerful microcontroller (MCU), purpose-built to deliver lifted performance in digital signal processing. This strength is effectively enabled by its Arm\u003csup\u003e®\u003c\/sup\u003e Cortex\u003csup\u003e®\u003c\/sup\u003e-M55 processor, at speed of up to 220 MHz. Its operating voltage ranges from 1.71V to 3.6V while its operating temperature ranges from -40°C to +105°C.\u003c\/p\u003e\n\u003ch5\u003eEnhanced compute capability\u003c\/h5\u003e\n\u003cp\u003eThis M5531 series incorporates up to 1.5 MB of SRAM and 2 MB of Flash Memory directly on the chip, along with SPIM interfaces for accommodating expanded RAM and ROM requirements. Its abundant compute resources, including DSP extensions, vector extensions (Helium), double-precision FPU, 2 sets of 16-channel PDMA controllers, 1 set of 2-channel GDMA(Graphic Direct Memory Access) controller, and ample SRAM and Flash Memories, make it ideal for compute-intensive embedded applications like real-time signal processing, high-performance control systems, sensor fusion, industrial automation, and communication systems.\u003c\/p\u003e\n\u003ch5\u003eStrengthened security measures\u003c\/h5\u003e\n\u003cp\u003eSecurity is another pivotal consideration for the M5531 series, featuring advanced security features such as secure boot, Arm TrustZone\u003csup\u003e®\u003c\/sup\u003e, true random number generator (TRNG), key derivation function (KDF), key store, AES\/ECC\/RSA\/SHA\/HMAC cryptography accelerators, and Arm PSA Certified\u003csup\u003eTM\u003c\/sup\u003e Level 2 compliance. These robust security measures significantly enhance the security and integrity of systems built with the M5531 series.\u003c\/p\u003e\n\u003ch5\u003eAbundant control functions\u003c\/h5\u003e\n\u003cp\u003eFor analog and control functions, the M5531 series implements 2 sets of 12-bit SAR ADC, 2 sets of 12-bit 1 Msps DAC, 4 sets of analog comparators (ACMP), 1 set of built-in temperature sensor, 1 set of internal voltage reference generator, up to 24-channel PWM outputs, 4 sets of QEI, and 4 sets of input capture units.\u003c\/p\u003e\n\u003ch5\u003eRich connectivity peripherals\u003c\/h5\u003e\n\u003cp\u003eThe M5531 series also provides a wide array of communication and peripheral interfaces, including one set of Universal Serial Control Interface (USCI), which can be configured as UART\/SPI\/I²C with flexibility, 10 sets of UART, 4 sets of SPI\/I²S, 4 sets of I²C, 1 set of I3C, 2 sets of CAN FD, 2 sets of QSPI, 2 sets of independent I²S, 1 set of USB 2.0 high-speed OTG\/Host\/Device with PD (Power Delivery) function and supporting USB Type-C connector, 1 set of USB 2.0 full-speed OTG\/Host\/Device, 1 set of 10\/100 Ethernet MAC with RMII interface, 1 set of 8-bit parallel image sensor interface (CCAP), 1 set of 4-channel PDM microphone interface controller (DMIC), 3 sets of ISO-7816-3 smart card interfaces, and 2 sets of SDIO.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePackage\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/m5531r2ljae\/\" rel=\"noopener\" target=\"_blank\"\u003eM5531R2LJAE\u003c\/a\u003e：LQFP64 (10 × 10 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/m5531k2ljae\/\" rel=\"noopener\" target=\"_blank\"\u003eM5531K2LJAE\u003c\/a\u003e：LQFP128 (14 × 14 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/m5531h2ljae\/\" rel=\"noopener\" target=\"_blank\"\u003eM5531H2LJAE\u003c\/a\u003e：LQFP176 (24 × 24 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable style=\"width: 100%; table-layout: fixed; white-space: nowrap;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eUART\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eI²C\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eI3C\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eSPI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eQSPI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eUSCI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e10 + 5\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4 + 2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4 + 2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eCAN FD\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eFS USB\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eHS USB\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eEthernet\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003ePSIO\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eSDIO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e8-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eI²S\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003ePWM\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eADC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eDAC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eACMP\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e2 + 4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e24-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e48-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #d9d9d9;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003eSmart\u003cbr\u003eCard\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eDMIC\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eCCAP\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eQEI\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003ePDMA\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4-ch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e32-ch\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eTable 1‑1 NuMicro M5531 Series Key Features Support Table\u003c\/p\u003e\n\u003cp\u003eThe M5531 series benefits design of a wide range of applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIIOT\u003c\/li\u003e\n\u003cli\u003eIndustrial Automation\u003c\/li\u003e\n\u003cli\u003eHuman Machine Interface\u003c\/li\u003e\n\u003cli\u003eCommunication Systems\u003c\/li\u003e\n\u003cli\u003eSensor Fusion\u003c\/li\u003e\n\u003cli\u003eSmart Appliances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Characteristics\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage range: 1.71V to 3.6V\u003c\/li\u003e\n\u003cli\u003eTemperature range: -40°C to +105°C\u003c\/li\u003e\n\u003cli\u003eESD HBM ±3 kV\u003c\/li\u003e\n\u003cli\u003eEFT ±4.4 kV\u003c\/li\u003e\n\u003cli\u003eLatch Up: ±200 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eArm Cortex-M55 core, running up to 220 MHz\u003c\/li\u003e\n\u003cli\u003eArm M-profile vector extension enabled (Helium)\u003c\/li\u003e\n\u003cli\u003eIEEE 754 compliant floating-point unit (FPU) supporting vector and scalar half-, single-, and double-precision floating-point calculations\u003c\/li\u003e\n\u003cli\u003eArm TrustZone technology including an 8-region secure memory protection unit and an 8-region non-secure memory protection unit\u003c\/li\u003e\n\u003cli\u003eArm custom instructions (ACI) implemented for accelerating specific math operations\u003c\/li\u003e\n\u003cli\u003eL1 cache: 16 KB instruction cache (I-cache) and 16 KB data cache (D-cache)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemories\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSecure Boot ROM (MaskROM): 24 KB\u003c\/li\u003e\n\u003cli\u003eAPROM Flash: 2 MB (dual banks of 1MB each)\u003c\/li\u003e\n\u003cli\u003eLDROM Flash: 8 KB\u003c\/li\u003e\n\u003cli\u003eOTP Flash: 3 KB\u003c\/li\u003e\n\u003cli\u003eXOM (Execution-only memory): 4 regions\u003c\/li\u003e\n\u003cli\u003eSRAM0: 512 KB\u003c\/li\u003e\n\u003cli\u003eSRAM1: 512 KB\u003c\/li\u003e\n\u003cli\u003eSRAM2: 320 KB\u003c\/li\u003e\n\u003cli\u003eSRAM3: 8 KB\u003c\/li\u003e\n\u003cli\u003eLPSRAM: 8 KB\u003c\/li\u003e\n\u003cli\u003eI-TCM(Tightly Coupled Memory) : 64 KB\u003c\/li\u003e\n\u003cli\u003eD-TCM(Tightly Coupled Memory) : 128 KB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Memory Interface\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSPIM (with HyperBus interface) supporting SPI Flash, QSPI, OSPI, and HyperFlash memories up to 32 MB, featuring AES on-the-fly decryption\u003c\/li\u003e\n\u003cli\u003eExternal bus interface (EBI) supporting 8- or 16-bit data width, i80 mode LCD interface, and up to three sets of 1 MB memory banks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClocks\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e4~32 MHz high-speed external crystal oscillator\u003c\/li\u003e\n\u003cli\u003e32.768 kHz low-speed external crystal oscillator\u003c\/li\u003e\n\u003cli\u003e48 MHz high-speed internal RC oscillator\u003c\/li\u003e\n\u003cli\u003e12 MHz high-speed internal RC oscillator with 2% deviation\u003c\/li\u003e\n\u003cli\u003e1~8 MHz high-speed internal RC oscillator\u003c\/li\u003e\n\u003cli\u003e32 kHz low-speed internal RC oscillator\u003c\/li\u003e\n\u003cli\u003e2 sets of programmable APLL, up to 480 MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Memory Access (DMA)\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e2 sets of 16-channel PDMA controllers\u003c\/li\u003e\n\u003cli\u003e1 set of 2-channel GDMA(Graphic Direct Memory Access) controller (DMA-350)\u003c\/li\u003e\n\u003cli\u003e1 set of 4-channel LPPDMA controller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecurity Functions\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSecure Boot\u003c\/li\u003e\n\u003cli\u003eKey derivation function (KDF)\u003c\/li\u003e\n\u003cli\u003eCryptography accelerator including algorithms up to AES-256, ECC-571, SHA-512, HMAC-512, RSA-4096, and a pseudo random number generator (PRNG)\u003c\/li\u003e\n\u003cli\u003eTrue random number generator (TRNG)\u003c\/li\u003e\n\u003cli\u003eKey store module for key management, including a dedicated Key store SRAM buffer\u003c\/li\u003e\n\u003cli\u003eFour eXecute-Only-Memory (XOM) regions for code protection\u003c\/li\u003e\n\u003cli\u003eWrite protection in Flash memory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Management\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eActive power: 94.5 μA\/MHz at 220MHz\u003c\/li\u003e\n\u003cli\u003eNormal power-down (NPD4) with 64 KB SRAM retention: 12.5 μA at 3.0V\u003c\/li\u003e\n\u003cli\u003eStandby power-down (SPD1) with 64 KB SRAM retention: 6.1 μA at 3.0V (SRAM retention up to 64\/128\/192\/256\/320\/384\/448\/512 KB)\u003c\/li\u003e\n\u003cli\u003eDeep power-down (RTC on): 0.64 μA at 3.0V (LIRC)\u003c\/li\u003e\n\u003cli\u003eRTC (V\u003csub\u003eBAT\u003c\/sub\u003e): 0.36 μA\u003c\/li\u003e\n\u003cli\u003ePower-on reset\u003c\/li\u003e\n\u003cli\u003eBrown-out reset\u003c\/li\u003e\n\u003cli\u003eLow voltage reset\u003c\/li\u003e\n\u003cli\u003eBuilt-in LDO voltage regulators\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimer and Control Peripheral\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e4 sets of 32-bit timers, supporting PWM function\u003c\/li\u003e\n\u003cli\u003e2 sets of 32-bit low power timers, supporting PWM function\u003c\/li\u003e\n\u003cli\u003e2 sets of tick timers\u003c\/li\u003e\n\u003cli\u003e1 set of 24-bit count-down SysTick timer\u003c\/li\u003e\n\u003cli\u003e2 sets of watchdog timers\u003c\/li\u003e\n\u003cli\u003e2 sets of window watchdog timers\u003c\/li\u003e\n\u003cli\u003eUp to 12 enhanced PWM (EPWM) outputs generated by twelve 16-bit counters\u003c\/li\u003e\n\u003cli\u003eUp to 12 basic PWM (BPWM) outputs generated by two 16-bit counters\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of enhanced quadrature encoder interfaces (EQEI)\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of enhanced input capture unit (ECAP)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity Interfaces\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 10 sets of UART interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPUART interface\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of I²C interfaces, up to 1 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPI2C interface, up to 1 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of I3C interface, up to 25 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of SPI\/I²S interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPSPI interface\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of Quad-SPI interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of USCI, supporting UART\/I²C\/SPI\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of SDIO interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 3 sets of ISO-7816-3 smart card interfaces, supporting UART\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of I²S interfaces\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of 8-ch programmable serial I\/O (PSIO) interface\u003c\/li\u003e\n\u003cli\u003eDMIC (Digital microphone inputs), supporting 4-channel PDM interface and voice activity detection (VAD)\u003c\/li\u003e\n\u003cli\u003e6x8 Keypad Interface (KPI)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Connectivity\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 2 sets of CAN FD interfaces\u003c\/li\u003e\n\u003cli\u003eUSB 2.0 high speed device\/host\/OTG controller with dedicated DMA and on-chip PHY, supporting power delivery (PD) function\u003c\/li\u003e\n\u003cli\u003eUSB 2.0 full speed device\/host\/OTG controller with on-chip PHY, supporting crystal-less at device mode\u003c\/li\u003e\n\u003cli\u003e10\/100 Ethernet MAC with RMII interface, supporting IEEE 1588 v2 precision time protocol\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Peripherals\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eLPSRAM: 8 KB\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPUART interface\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPI²C interface, up to 1 Mbps\u003c\/li\u003e\n\u003cli\u003eUp to 1 set of LPSPI interface\u003c\/li\u003e\n\u003cli\u003e1 set of 4-channel LPPDMA controller\u003c\/li\u003e\n\u003cli\u003e2 sets of 32-bit low power timers, supporting PWM function\u003c\/li\u003e\n\u003cli\u003e1 set of 12-bit, up to 24-ch, 2 Msps SAR LPADC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Capture Interface Controller (CCAP)\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eResolution up to 640x480 pixels\u003c\/li\u003e\n\u003cli\u003eSupports motion detection engine with 320x240 image data in Power-down mode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Peripherals\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e1 set of 12-bit, up to 24-channel, 5 Msps SAR ADC\u003c\/li\u003e\n\u003cli\u003e1 set of 12-bit, up to 24-channel, 2 Msps SAR LPADC\u003c\/li\u003e\n\u003cli\u003eUp to 2 sets of 12-bit, 1 Msps buffered DAC\u003c\/li\u003e\n\u003cli\u003eUp to 4 sets of analog comparators (ACMP)\u003c\/li\u003e\n\u003cli\u003eBuilt-in internal reference voltage\u003c\/li\u003e\n\u003cli\u003eBuilt-in temperature sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCyclic Redundancy Calculation (CRC)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal Time Clock (RTC), Tamper and V\u003csub\u003eBAT\u003c\/sub\u003e Power Domain\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSupports independent V\u003csub\u003eBAT\u003c\/sub\u003e power pin for RTC and tamper detection\u003c\/li\u003e\n\u003cli\u003eSupports calendar RTC\u003c\/li\u003e\n\u003cli\u003eBackup registers: 80 bytes\u003c\/li\u003e\n\u003cli\u003eTamper detection: 6 pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Features\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 142 GPIO with interrupt capability\u003c\/li\u003e\n\u003cli\u003eGPIO with internal pull-up \/ pull-down resistor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e96-bit Unique ID (UID)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e128-bit Unique Customer ID (UCID)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003ePackage is Halogen-free, RoHS-compliant and TSCA-compliant.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable style=\"width: 100%; table-layout: fixed; white-space: nowrap;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003ePin Count\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e176\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e128\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLQFP\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLQFP\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLQFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eI\/O Pin\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e142\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e97\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e39\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eLead Pitch\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.5\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eDimensions \u003cbr\u003e(mm)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e24 x 24\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e14 x 14\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e10 x 10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDevelopment Environment:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eProgramming IDE: Keil MDK, IAR, NuEclipse (GCC), VSCode\u003c\/li\u003e\n\u003cli\u003eDevelopment IDE: NuTool PinConfigure, NuTool Pin-View, NuTool-ClockConfig, NuConsole\u003c\/li\u003e\n\u003cli\u003eRTOS: FreeRTOS, Zephyr, RT-Thread\u003c\/li\u003e\n\u003cli\u003eGUI Library: emWin, LVGL, Qt for MCU\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvaluation Board\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eNuMaker-M5531\n\u003cul\u003e\n\u003cli\u003eSupported Devices: M5531H2LJAE M5531K2LJAE M5531R2LJAE\u003c\/li\u003e\n\u003cli\u003eFeature: Support USB HS, Expand Connector, and Arduino UNO Interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Documents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFor more details, please visit Nuvoton Official Website: \u003ca href=\"https:\/\/www.nuvoton.com\/products\/microcontrollers\/arm-cortex-m55-mcus\/m5531-series\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eGO\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nuvoton Direct","offers":[{"title":"Tray","offer_id":43609557336270,"sku":"M5531K2LJAE","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/0749\/7934\/files\/1749_ac57bcee-70ea-4e24-acca-300ec389cd48.png?v=1784109114"}],"url":"https:\/\/direct.nuvoton.com\/zh\/collections\/m5531-series.oembed","provider":"Nuvoton Direct","version":"1.0","type":"link"}