APM32F427/425/423 Series
Overview
Performance
Selection Tools
Block Diagram
Documentation
Design Resources

The APM32F427/425/423 series is a high-performance industrial MCU running at up to 240 MHz. It provides up to 1 MB Flash and 448 KB SRAM, along with high-speed ADCs, DACs, and multiple communication interfaces, including Ethernet, CAN, USB OTG, and an enhanced EMMC interface for external memory or FPGA connectivity. The APM32F425 also features zero-wait-state Flash for faster real-time program execution. Designed for demanding industrial applications, this series is ideal for PLCs, servo drives, drones, robotics, energy storage BMS, and more.

Packaging Roadmap

Performance

System

  • Arm ® Cortex ® -M4F

  • Operating frequency: 240 MHz/192MHz

  • 16-channel DMA

  • Supports FPU/DSP

Memory

  • Flash: 1024 KB

  • SRAM: 448 /384/192 KB + 4 KB

  • EMMC: Supports external memory expansion

Power Management

  • Operating voltage: 1.8~3.6V

  • Supports POR/PDR/BOR

  • Supports programmable voltage detector (PVD)

Timers

  • 16-bit advanced timers: 2

  • 16/32-bit general-purpose timers: 6/4

  • 16-bit basic timers: 2

  • Watchdog timers: 2

  • 24-bit SysTick: 1

Analog Peripherals

  • 12-bit ADCs: 3, External channels: 24 

  • 12-bit DACs: 2

I/O

  • Up to 114 I/Os

  • All I/O are mapped to external interrupt vectors

Communication Interfaces

  • USART/UART: 4 + 2

  • I²C: 3

  • SPI: 3

  • QSPI: 1

  • CAN: 2

  • USB OTG_FS: 2

  • SDIO: 1

  • Ethernet MAC: 1

Security

  • RNG

  • 96-bit unique device ID

Selection Tools

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Core

Frequency(MHz)

FLASH(KB)

SRAM(KB)

FPU

I/Os

Voltage(V)

GPTMR(16bit)

GPTMR(32bit)

Advanced TMR(16bit)

Basic TMR

Systick(24bit)

IWDT

WWDT

RTC

ADC 12-bit Cell

ADC 12-bit Channels

DAC 12-bit Cell

DAC 12-bit Channels

Analog Comparator

TSC (Channels)

SPI

QSPI

I2S

I2C

U(S)ART

CAN

SDIO

USB Device

CEC

USB OTG_FS

USB OTG_HS

DCI

SMC

DMC

Ethernet

RNG

AES/DES/ TDES

BN/ SM3/SM4

Package

FTMR(16bit)

LPTMR(16bit)

LPITMR(32bit)

WDT

EWDT

PDU

LPSPI

LPI2C

LPUART

SAI

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Compare
Part No.
Core
Frequency(MHz)
FLASH(KB)
SRAM(KB)
FPU
I/Os
Voltage(V)
GPTMR(16bit)
GPTMR(32bit)
Advanced TMR(16bit)
Basic TMR
Systick(24bit)
IWDT
WWDT
RTC
ADC 12-bit Cell
ADC 12-bit Channels
DAC 12-bit Cell
DAC 12-bit Channels
Analog Comparator
TSC (Channels)
SPI
QSPI
I2S
I2C
U(S)ART
CAN
SDIO
USB Device
CEC
USB OTG_FS
USB OTG_HS
DCI
SMC
DMC
Ethernet
RNG
AES/DES/ TDES
BN/ SM3/SM4
Package
FTMR(16bit)
LPTMR(16bit)
LPITMR(32bit)
WDT
EWDT
PDU
LPSPI
LPI2C
LPUART
SAI

Block Diagram

Documentation

  • All
  • Data Sheet
  • User Manual
  • Application Note
  • Package Library
  • Development Board Manual
  • Development Board Schematic
  • Errata Sheet
Format Size
APM32F427xG_F425xG_F423xG Datasheet Data Sheet V1.5 pdf 5.71 MB July 28, 2026
APM32F427xG_F425xG_F423xG User Manual User Manual V1.4 pdf 17.99 MB July 28, 2026
AN1080_APM32_APM32 Series Tool Chain User Manual Application Note V1.1 pdf 1.21 MB October 28, 2022
AN1090_APM32_TSC Touch Module Application Note V1.0 pdf 1.51 MB April 19, 2023
AN1093_APM32_Eclipse Development Tutorial under APM32 Arm MCU Windows System Application Note V1.0 pdf 3.15 MB July 13, 2023
AN1095_APM32_USB Device Library Application Note Application Note V1.0 pdf 1.15 MB August 30, 2023
AN1158_ Application Notes for Migrating from APM32F407 to APM32F425_427 Application Note V1.0 pdf 776.71 KB July 17, 2025
AN1157_APM32F4xx_SDK Quick Start Guide Application Note V1.0 pdf 1.25 MB July 15, 2025
APM32F427 TinyBoard Schematic Diagram Development Board Schematic V1.0 pdf 154.6 KB August 01, 2025
APM32F425xG_427xG Pcblib Package Library V1.0 PcbLib 282.5 KB November 12, 2025
APM32F425xG_427xG Schlib Package Library V1.0 schlib 345.5 KB November 12, 2025
APM32F427ZG TinyBoard User Manual Development Board Manual V1.0 pdf 795.45 KB August 08, 2025
APM32F425xG_F427xG Errata Sheet Errata Sheet V2.0 pdf 652.45 KB May 06, 2026

Design Resources

Hardware Development Tools
Software Development Tools
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Product
APM32F427ZG TINY Board Development Board