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APM32F103xDxE Series MCU, based on 32-bit Arm® Cortex®-M3 core, with a maximum operating frequency of 96MHz, supports FPU floating-point operation unit, configures enhanced external memory controller eMMC, supports USB and CAN interface at the same time. It integrates on-chip memory, timer, data converter and other peripheral interfaces, and has the characteristics of low power consumption, large capacity, good portability, fast flash erase / programming speed, etc. At present, it has passed the IEC 61508 SIL2 certification and USB-IF certification, which meets the high-reliability standard of industrial grade. It is applicable to model aircraft, hand-held cradle head, scanning code gun, alarm, code lock, electronic scale and other fields.



  • Arm® Cortex®-M3

  • Frequency 96MHz

  • Support FPU Temperature range -40℃~+105℃

  • Support IEC61508 SIL2

  • Support USB-IF


  • Flash: 512KB

  • SRAM: 64/128KB

Power Consumption

  • Supply voltage: 2.0V~3.6V

  • Built in programmable voltage monitor Support sleep, stop and standby modes VBat supports RTC and backup register power supply


  • 16-bit universal timer: 4

  • 16-bit basic timer: 2

  • 16-bit advanced timer:2

  • Watchdog timer: 2

  • SysTick: 1

Analog peripherals

  • 12-bit ADC:3,external channels: 21

  • 12-bit: 2

  • Conversion range: 0~VDAA

  • Internal Temperature Sensor: 1


  • 51/80/112 I/O

  • All I/Os can be mapped to 16 external interrupt controller

  • Almost all I/O tolerates 5V signal input


  • 96-bit non-rewriteable unique identity

  • Supporting CRC computing unit

Debug Mode

  • SWD and JTAG interface


  • U(S)ART :  5

  • I²C : 2

  • SPI : 3

  • USB: 1

  • CAN: 1

  • I²S: 2

  • SDIO: 1

  • Support SDRAM

  • Support using both USB and CAN interfaces


  • LQFP64/100/144

Documents &Development Tools

Data Sheet
User Manual
Development Board

Geehy Development Boards (including MiniBoard and EvalBoard) are equipped with everything you need to evaluate the APM32 microcontroller. Each kit comes with a variety of pins broken out to 2.54mm headers, USB type B connection, USART connection (DB9) , push buttons, accessible boot pins, and a JTAG/SWD interface for programming. 

Contact our North American team today! 
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