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APM32A407 series of MCUs, based on Arm® Cortex® -M4 core, working frequency up to 168MHz, supports single FPU and enhanced DSP processing instructions. High-speed OTG interface supporting on-chip PHY. SM3, SM4, and other encryption algorithms are added to ensure data and information security effectively. Certified AEC-Q100, it has been successfully applied in automotive fields such as Vehicle Navigation, OBC, Automobile Instrument, T-BOX, and Intelligence Lighting Control Systems.



  • Arm® Cortex®-M4

  • Operates at frequency of 168MHz


  • Flash 1024KB

  • SRAM 192+4KB

Power Consumption

  • VDD/VDDA: 1.8V~3.6V

  • Backup domain power VBAT: 1.65~3.6V

  • Support POR/PDR

  • Supports sleep, stop and standby modes


  • 16/32-bit universal timer: 8/2

  • 16-bit advanced timer: 2

  • 16-bit basic timer: 2

  • Watchdog timer: 2

  • 24-bit system timer: 1

Analog Peripherals

  • 12-bit ADC: 3, External channel: 16/24

  • 12-bit DAC: 2


  • 82/114 I/Os

  • All I/O are mapped to external interrupt vectors

Debug Mode

  • SWD

  • JTAG


  • U(S)ART : 6

  • I2C : 3

  • SPI/I2S :  3/2

  • CAN : 2

  • USB OTG : 3

  • SDIO : 1,DCI : 1

  • Ethernet : 1

Certification level

  • AEC-Q100 Grade 1/2


  • BN/SM3/SM4


  • LQFP100/144

Documents &Development Tools

Data Sheet
User Manual
Development Board

Geehy MiniBoards 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. 

User Manual
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