G32R502 Series

The G32R502 real-time MCU/DSP series combines a high-performance Arm® Cortex®-M52 core, a single-precision FPU, and operating speeds up to 200MHz. It accelerates edge AI and vector processing with Arm Helium™ technology and proprietary Zidian math instruction extension. The series delivers efficient computing, sensitive signal detection, and precise real-time control. With an operating temperature range of −40°C to 105°C/125°C, it is ideal for PV optimizers, microinverters, VFDs, and power modules used in communications equipment, servers, and DC charging stations.

Packaging Roadmap

Performance

System

  • Arm® Cortex®-M52 core
  • Up to 200MHz operating frequency
  • Single-precision FPU and DSP support
  • Arm Helium™ technology
  • Proprietary Zidian math instruction extension

Memory

  • 256KB Flash

    Two independent 128KB banks

    Fast dual-bank code switching (A/B Swap)

  • 40KB SRAM
  • ECC protection
  • Third-party dual-zone security support

Clock and System Control

  • 2 × internal pinless 10MHz oscillators
  • On-chip crystal oscillator and external clock input
  • Windowed watchdog timer
  • Missing-clock detection circuit
  • Dual clock comparator modules

System Peripherals

  • 6-channel DMA
  • 52 × GPIO
  • 10 × digital-input AIO
  • Enhanced external interrupt (EXTI) module
  • Multiple low-power modes with external wake-up

Communication Peripherals

  • 1 × PMBus
  • 2 × I2C
  • 2 × CAN (1 supports CAN FD)
  • 1 × SPI
  • 3 × UART
  • 1 × LIN

Analog Peripherals

  • 2 × 3.72 MSPS, 12-bit ADCs  
  • 2 × 12-bit buffered DACs  
  • 4 × window comparators with built-in 12-bit DACs

Control Peripherals

  • 14 × high-resolution PWM channels with 150 ps resolution
  • 3 × enhanced capture (CAP) modules
  • 1 × quadrature encoder pulse (QEP) module
  • Flexible Logic Block (FLB)

Package

  • LQFP80(12mm*12mm)
  • LQFP64(10mm*10mm)
  • HTQFP48(7mm*7mm)
  • VQFN32(5mm*5mm)

Selection Tools

All Products

Core

Zidian Math
Instruction Extension

Frequency(MHz)

DMA Channels

FLASH(KB)

SRAM(KB)

FPU

Voltage(V)

Operating Temperature(℃)

GPTMR(32bit)

NMIWD

WWDT

ADC 12-bit Cell

ADC 12-bit Channels

T-sensor

COMP(DAC 12-bit Cell Embedded)

CAP(HRCAP)

PWM (HRPWM Channels)

QEP

SPI

QSPI

I2C

UART

CAN(CAN FD)

SDF Channels

LIN

USB Device

I/Os

DAC 12-bit Cell

PMBus

Package

Compare
Part No.
Core
Zidian Math
Instruction Extension
Frequency(MHz)
DMA Channels
FLASH(KB)
SRAM(KB)
FPU
Voltage(V)
Operating Temperature(℃)
GPTMR(32bit)
NMIWD
WWDT
ADC 12-bit Cell
ADC 12-bit Channels
T-sensor
COMP(DAC 12-bit Cell Embedded)
CAP(HRCAP)
PWM (HRPWM Channels)
QEP
SPI
QSPI
I2C
UART
CAN(CAN FD)
SDF Channels
LIN
USB Device
I/Os
DAC 12-bit Cell
PMBus
Package

Block Diagram

Documentation

Format Size
AN1127_G32R5xx SDK Examples User Manual Application Note V1.1 pdf 2.7 MB September 21, 2026
AN1131_G32R5xx Tool User Manual Application Note V1.1 pdf 611.64 KB September 21, 2026
AN1132_G32R5xx Zidian Application Note Application Note V1.1 pdf 724.25 KB September 21, 2026
AN1133_G32R5xx Interrupt Application Note Application Note V1.1 pdf 630.26 KB September 21, 2026
AN1134_G32R5xx SDK SFO Library Function Application Note Application Note V1.1 pdf 680.16 KB September 21, 2026
AN1125_G32R5xx SDK Quick Start Guide Application Note V1.2 pdf 749.51 KB September 21, 2026
AN1126_G32R5xx IDE and Tool Chain User Guide Application Note V1.2 pdf 3.7 MB September 21, 2026
AN1129_G32R5xx Keil Debug Tool User Manual Application Note V1.2 pdf 641.11 KB September 21, 2026
AN1130_G32R5xx Keil Linker Script Application Note Application Note V1.2 pdf 963.99 KB September 21, 2026
G32R502 EVAL Schematic Diagram Development Board Schematic V1.0 pdf 575.59 KB September 15, 2026
G32R502 IntLib Package Library V1.0 IntLib 283.5 KB September 15, 2026
G32R502 SCHLIB Package Library V1.0 SCHLIB 107.5 KB September 15, 2026
G32R502 PcbLib Package Library V1.0 PcbLib 418.5 KB September 15, 2026

Design Resources

Hardware Development Tools
Software Development Tools
Product
G32R502 EVAL Board Development Board
AI Assistant