NuMicro® MS51XB9AE is embedded with based on 1T 8051-based CMOS microcontroller, runs up to 24 MHz, features 16 K bytes flash, 1 K bytes SRAM, and 4 K bytes loader ROM for the ISP, also equipped with rich peripherals: 2 sets of UART; 1 set of I²C, and 1 set of SPI, 18 GPIO, 8 channels of 12-bit ADC, Watchdog Timer, Window Watchdog Timer and 6*16-bit PWM channel, package is available in QFN20.
Target Application:
- LED lighting
- Home appliances
- Industrial control
- Motor control
- Battery management system
- Power supplies
Key Features:
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Operating Characteristics |
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Voltage range: 2.4 V to 5.5 V |
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Temperature range: - 40 ℃ to + 105 ℃ |
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EFT 4 kV |
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Core |
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1T 8051-based CMOS microcontroller running up to 24 MHz |
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Memories |
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16 K bytes Flash |
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Configurable 4 K / 3 K / 2 K / 1 K Bytes of LDROM, which provides flexibility to user developed Boot Code |
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1 K bytes SRAM |
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256 Bytes on-chip RAM |
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Flash Memory accumulated with pages of 128 Bytes each |
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Built-in In-Application-Programmable ( IAP ) |
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Clocks |
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External clock input ( 32 K body only ) |
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16 MHz high-speed internal oscillator trimmed to ± 1 % when VDD 5.0 V, ± 2 % in all conditions. |
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24 MHz high-speed internal oscillator trimmed to ± 1 % when VDD 5.0 V, ± 2 % in all conditions |
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10 kHz low-speed internal oscillator |
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On-the-fly clock source switch via software |
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Power management |
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Brown-out detection ( BOD ) with low power mode available, 4-level selection, interrupt or reset options |
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Power-on reset ( POR ) |
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Peripherals |
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Two 16-bit Timers / Counters 0 and 1 compatible with standard 8051 |
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One 16-bit Timer 2 with three-channel input capture module and 9 input pin can be selected |
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One 16-bit auto-reload Timer 3, which can be the baud rate clock source of UARTs |
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One 16-bit PWM counter interrupt for timer |
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6*16-bit pulse width modulator ( PWM ) output, with different modes and Fault Brake function for motor control |
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One programmable Watchdog Timer ( WDT ) |
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One dedicated Self Wake-up Timer ( WKT ) |
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2 full-duplex UART ports with frame error detection and automatic address recognition |
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1 SPI port with master and slave modes, up to 12 Mbps when system clock is 24 MHz |
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1 I²C bus with master and slave modes, up to 400 kbps data rate |
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8 channels of 12-bit ADC, up to 500 ksps converting rate |
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18 general purpose I / O pins and 1 input-only pin |
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Programmable pull-ups pull-lows |
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Development Tools |
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Nuvoton Nu-Link with KEILTM and IAR development environment |
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Nuvoton Nu-Link In-Circuit-Programmer |
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Nuvoton In-System-Programming ( ISP ) |
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96-bit Unique ID (UID) |
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128-bit Unique Customer ID (UCID) |
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2-Byte (16-bit) PDID |
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For more details and documents, please link to Nuvoton Official Website GO