STMicroelectronics STM32G4A1RET3

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32G4
Packaging Bulk | NULL
Core Processor ARM® Cortex®-M4
Core Size 32-Bit
Speed 170MHz
Connectivity CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
Number of I/O 52
Program Memory Size 512KB (512K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 112K x 8
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V
Data Converters A/D 24x12b SAR; D/A 4x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-LQFP (10x10)
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32G4A1RET3 from STMicroelectronics is a high-performance 32-bit microcontroller built on the ARM Cortex-M4 core. It delivers 170 MHz processing speed, 512KB of flash memory, and 112KB of RAM, making it suitable for demanding real-time control applications. With a wide supply voltage range of 1.71V to 3.6V and an extended temperature range, it offers design flexibility for industrial and automotive environments. The device integrates advanced timers, analog peripherals, and communication interfaces, providing a comprehensive solution for motor control, digital power, and embedded systems.

  • High-Speed Processing: 170 MHz Cortex-M4 core delivers rapid computation for real-time control loops and complex algorithms.
  • Rich Analog Integration: On-chip high-resolution timers and ADCs reduce external component count and improve system accuracy.
  • Robust Protection: Includes Brown-out Detect, POR, and WDT for enhanced system reliability in critical applications.
  • Extended Temperature Range: Operates from -40°C to 125°C, suitable for harsh industrial and automotive environments.

Industrial Motor Control

With a 170 MHz Cortex-M4 core and advanced PWM timers, this MCU is ideal for field-oriented control of BLDC and PMSM motors, enabling high-efficiency and low-noise operation.

Digital Power Conversion

The STM32G4A1RET3 includes high-resolution timers and analog peripherals suitable for digital switch-mode power supplies, inverters, and battery chargers, ensuring precise regulation and fast transient response.

Advanced Embedded Systems

Its 512KB flash and 112KB RAM, combined with DMA and I2S, support complex real-time applications such as audio processing and multi-protocol communication hubs.

Automotive and Harsh Environments

Rated for -40°C to 125°C, this MCU is suitable for under-the-hood automotive electronics, including engine control units and transmission modules, where reliability is critical.

Smart Sensors and IoT Nodes

With low-power modes and a rich set of communication interfaces, it can serve as a central processor for smart sensors, aggregating data and performing edge processing before transmission.

Medical Devices

The combination of high-speed processing and robust safety features (POR, Brown-out Detect, WDT) makes it suitable for portable medical monitoring equipment requiring dependable operation.

Q: What is the maximum operating frequency of the STM32G4A1RET3?
A: The STM32G4A1RET3 operates at up to 170 MHz.
Q: What is the supply voltage range?
A: It supports a supply voltage from 1.71V to 3.6V.
Q: How much flash memory and RAM does it have?
A: It features 512KB of flash memory and 112KB of RAM.
Q: What package is available?
A: It comes in a 64-LQFP package.
Q: What is the operating temperature range?
A: It operates from -40°C to 125°C.
Base Product Number : STM32G4A1RET3
112KB RAM 170MHz 32-bit MCU 512KB Flash 64-LQFP ARM Cortex-M4 Automotive Digital Power Industrial Motor Control STM32G4 STM32G4A1RET3
Q: What is the maximum operating frequency of the STM32G4A1RET3?
A: The STM32G4A1RET3 operates at up to 170 MHz.
Q: What is the supply voltage range?
A: It supports a supply voltage from 1.71V to 3.6V.
Q: How much flash memory and RAM does it have?
A: It features 512KB of flash memory and 112KB of RAM.
Q: What package is available?
A: It comes in a 64-LQFP package.
Q: What is the operating temperature range?
A: It operates from -40°C to 125°C.