M253LD3BE

M253LD3BE 32-bit microcontroller is based on Arm^® Cortex^®-M23 core for Armv8-M architecture. It runs up to 48 MHz and features 64 Kbytes Flash, 16 Kbytets SRAM, 1.75V ~ 5.5V wide operating voltage, and -40°C to +105°C operating temperature.

M253LD3BE includes a crystal-less USB 2.0 full speed device and one set of CAN FD interface. The USB interface supports up to 17 configurable endpoints, up to 5 VCOMs, and maximum 1 Kbytes buffer size.

M253LD3BE provides plenty of peripherals such as Timers, Watchdog Timers, 5 channels of PDMA, 5 sets of UART, 2 sets of I²C, 1 set of SPI/I²S and 1 set of Universal Serial Control Interface (USCI). It also includes high performance analog front-end circuit blocks, such as 12 channels of 12-bit 880 kSPS ADC, 6 channels of 16-bit PWM, and a temperature sensor to enhance product performance, to reduce external components and form factor simultaneously.

Supported packages LQFP48 (7mm x 7mm) with pin-compatible for different part numbers make the system design and parts change easily.

Applications

• USB Bridge
• Data Collector
• Battery Management System
• Automotive Related Module

Key Features

• Operating Characteristics
  • Voltage range: 1.75V ~ 5.5V
  • Temperature range: - 40 ℃ ~ +105 ℃
  • EFT 4.4 KV
  • ESD HBM 7 KV
• Core
  • Arm Cortex-M23 core using Armv8-M architecture, running up to 48 MHz, without TrustZone
  • 32-bit hardware multiplier/divider
• Memories
  • 64 KB Flash
  • 16 KB SRAM
  • 4 KB LDROM
  • ISP/ICP/IAP programming
• Clocks
  • 4 ~ 32 MHz external high speed crystal oscillator (HXT) for precise timing operation
  • 32.768 kHz external low speed crystal oscillator (LXT) for RTC function and low-power system operation
  • 48 MHz internal high speed RC oscillator (HIRC) for system operation (Factory pre-trimmed to ±0.25% and frequency deviation ±2.5% over entire temperature from -40°C ~ +105 °C
  • 4.032 MHz internal high speed RC oscillator (MIRC) for system operation
  • 38.4 kHz internal low speed RC oscillator (LIRC) for Watchdog Timer and wake-up operation
• Power management
  • Integrated with Power-on Reset, Brown-out Reset and Low Voltage Reset
  • Built-in LDO
• Low Power Consumption
  • 130 μA/MHz in operating mode
  • 35 μA/MHz in idle mode
  • 1.7 μA in Power-down mode (RTC off, RAM retention)
• Timers
  • Four 32-bit timers
  • One 24-bit SysTick timer
  • One independent watchdog
  • One window watchdog
  • RTC with Calendar and Alarm
• PDMA
  • 5 channels
  • Channel can be operated by – software trigger, SPI/I²S, UART, I²C, USCI, ADC and Timer
• Analog
  • 12 channels of 12-bit 880 kSPS ADC
• Communication interfaces
  • 5 sets of UART interfaces
  • 2 sets of I²C interfaces
  • 1 set of SPI/I²S
  • 1 set of USCI (configured as UART, SPI or I²C)
• CAN FD
  • 1 set of CAN FD controller with up to 64 data bytes per message
  • Compliant with CAN protocol version 2.0 part A, B and ISO 11898-1: 2015
  • Programmable receive and transmit FIFO
  • Accessible 1-Kbyte RAM memory to allocate up to 256 words
• USB
  • Supports 17 endpoints for configurable Control/Bulk/Interrupt/Isochronous transfer types and maximum 1024 bytes’ buffer size
  • Compliant with USB 2.0 Full-Speed specification
  • Provides 1 interrupt vector with 4 different interrupt events (NEVWK, VBUSDET, USB and BUS)
• 96-bit Unique ID ( UID )
• 128-bit Unique Customer ID ( UCID )
• Packages
  • LQFP48 ( 7 mm x 7 mm )
• Evaluation Board
  • NuMaker-M253LEB

Technical Documents

• For more details, please visit Nuvoton Official Website: GO