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With low power technology, Nuvoton ML51 series is based on 1T 8051 core microcontroller to support power down current below 1uA, power consumption is 80µA/MHz in normal run mode. It provides operating frequency up to 24MHz, operating voltage from 1.8V to 5.5V and operating temperature -40°C ~105°C. 

ML51 series is more than a 8-bit microcontroller, which equipped with several powerful features, such as 12-bit ADC, comparators, internal voltage reference, and Direct Memory Access(DMA) controller; ML51 also provides rich peripherals such as 2 sets of UART; 2 sets of smart card interface; 2 sets of I²C, and 2 sets of SPI. 

ML51 series is a complete MCU application platform with flash size from 16KB to 64KB, SRAM size from 1KB to 4KB. Packages are from small form factor MSOP10, TSSOP14, QFN 20, TSSOP20, LQFP32, QFN33 to LQFP 48-pin and LQFP64. Different part number with same package is supported Pin to Pin compatible, it makes users to select different flash memory size chip and change easily.

Target Application:

  • Wearable, battery-powered devices
  • Home appliances
  • IoT device
  • Auto-alarm system: smoke detector
  • Battery management system
  • Remote controller
  • WPC Wireless Charger

 

Operating Characteristics
  - Voltage range: 1.8 V to 5.5 V
  - Temperature range: -40°C to +105°C
   
Core
  - 1T 8051-based CMOS microcontroller running up to 24MHz
     
Memories
  - Up to 64 KB Flash
  - Up to 4 KB SRAM
  - Up to 4KB Flash for user program loader (LDROM) share with ARPOM
  Configurable Data Flash, shared with APROM
  - ISP / ICP / IAP programming
     
Clocks
  - 4 to 24 MHz HXT crystal oscillator or external input clock
  - 32.768 kHz LXT crystal oscillator or external input clock for low-power system operation
  - Internal 24 MHz HIRC oscillator variation < ±2% within all temperature and full voltage range
  - Internal 38.4kHz LIRC with variation < ±2%
   
Power management
  - Normal run mode: 80uA/ MHz
  - Low power run mode (run with LIRC): lowest current 15uA
  - Idle mode: lowest current: 13uA
  - Power-down current: Lowest current <1 uA
  - Wake up from power down in 10us (run with HIRC)
     
Timers
  - Four 16-bit timers(Timer0~3)
  - Up to Two 16-bit timers with each one up to6 channels PWM output
  - One Independent watchdog clock base on LIRC
  - One wake up timer base on LIRC or LXT selectable
     
Communication interfaces
  - Two UART (UART0/1) interfaces with standard UART, (up to 1.5 MHz, and 9600 baud rate in 38.4kHz low power run mode)
  - Up to Two Smart Card interfaces supports ISO7816-3 also supports UART function
  - Two I2C interfaces (up to 400KHz) 
  - Up to Two SPI interface (up to 12MHz)
PDMA controller
  - Up to 4-ch PDMA controller
  - Support transfer between Smart card and SRAM
  - Support transfer between SPI and SRAM
  -  Support transfer between SRAM to SRAM transfer
   
Analog
  - One 12-bit, 500 kSPS SAR ADC (Up to 8 channels input) with two internal channels for Internal temperature sensor and bandgap
  - ADC support continuous scan mode and data storage in SRAM
  - 4-level internal voltage select: 1.5/2.0/2.5/3.0V reference voltage for ADC, ACMP
  - Up to 2 channels of analog comparators
     
Up to 43 I/O with interrupt capability
  - Four I/O modes:
  • Quasi- Bidirectional mode
  • Input only with pull-up/pull-down
  • Push Pull output
  • Open Drain output
  - Supports TTL level inputs or Schmitt triggered
     
 96-bit Unique ID (UID)
     
128-bit Unique Customer ID (UCID)
     
2-Byte (16-bit) PDID
     
Development Tools
  - Nuvoton Nu-Link with KEILTM and IAR development environment.
  - Nuvoton Nu-Link In-Circuit-Programmer
  - Nuvoton In-System-Programming (ISP)
     

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Part No. Check Disty Flash SRAM Data Flash ISP ROM I/O Timer UART SPI I2C PWM Comparator ADC ISP /ICP /IAP Package Status INT Special Function
ML51BB9AE Check Disty None 16K 1K Configurable 4K 7 4*16-bit 2 1 2 6*16-bit   2 ISP,ICP,IAP MSOP10 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51DB9AE Check Disty None 16K 1K Configurable 4K 11 4*16-bit 2 1 2 6*16-bit   3 ISP,ICP,IAP TSSOP14 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51EB9AE Check Disty None 16K 1K Configurable 4K 24 4*16-bit 2 1 2 6*16-bit   8 ISP,ICP,IAP TSSOP28 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51EC0AE Check Disty None 32K 2K Configurable 4K 24 4*16-bit 2 2 2 6*16-bit 2 8 ISP,ICP,IAP TSSOP28 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51FB9AE Check Disty None 16K 1K Configurable 4K 16 4*16-bit 2 1 2 6*16-bit   6 ISP,ICP,IAP TSSOP20 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51OB9AE Check Disty None 16K 1K Configurable 4K 16 4*16-bit 2 1 2 6*16-bit   6 ISP,ICP,IAP SOP20 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51PB9AE Check Disty None 16K 1K Configurable 4K 24 4*16-bit 2 2 2 6*16-bit 2 8 ISP,ICP,IAP LQFP32 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51PC0AE Check Disty None 32K 2K Configurable 4K 28 4*16-bit 2 2 2 6*16-bit 2 8 ISP,ICP,IAP LQFP32 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51TB9AE Check Disty None 16K 1K Configurable 4K 28 4*16-bit 2 2 2 6*16-bit 2 8 ISP,ICP,IAP QFN33 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51TC0AE Check Disty None 32K 2K Configurable 4K 28 4*16-bit 2 2 2 6*16-bit 2 8 ISP,ICP,IAP QFN33 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51UB9AE Check Disty None 16K 1K Configurable 4K 24 4*16-bit 2 1 2 6*16-bit   8 ISP,ICP,IAP SOP28 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51UC0AE Check Disty None 32K 2K Configurable 4K 24 4*16-bit 2 2 2 6*16-bit 2 8 ISP,ICP,IAP SOP28 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger
ML51XB9AE Check Disty None 16K 1K Configurable 4K 17 4*16-bit 2 1 2 6*16-bit   6 ISP,ICP,IAP QFN20 Mass Production 2 1T 8051, 24 MHz internal RC, KBI, on-chip debugger

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