STMicroelectronics — STM32G474 Series Microcontrollers

STMicroelectronics STM32G474 Series Microcontrollers

32-bit MCUs offer integrated feature set for digital power-system control

The STM32G474 microcontrollers from STMicroelectronics enable the implementation of high-performance power systems which use digital control to achieve high precision and to provide design flexibility.


Key features for digital power control in the STM32G474 include a Filter-Math Accelerator (FMAC) to handle functions such as 3p/3z compensation, and to ensure high efficiency across the load range. The STM32G474 can also perform digital slope compensation, freeing CPU cycles for other functions. The MCUs provide a rich set of analog features, including five fast 12-bit ADCs, seven comparators, six operational amplifiers, seven DAC channels, an internal voltage reference buffer, a low-power real-time clock, and multiple high-resolution timers.


The STM32G474 devices are based on the Arm® Cortex®-M4 RISC core operating at a frequency of up to 170MHz. The Cortex-M4 core features a single-precision floating-point unit which supports all the Arm single-precision data-processing instructions and all the data types. The core also implements a full set of DSP instructions, and a memory protection unit for enhanced security.


High-speed memory provision comes in the form of embedded Flash and SRAM. The MCU also features a Quad SPI to external Flash memory. Protection mechanisms for the embedded Flash memory and SRAM include:

  • Read-out protection
  • Write protection
  • Securable memory area
  • Proprietary code read-out protection
The STM32G474 MCUs are available in ten package options which have up to 128 pins.


  • Memory:
    • Up to 512kbytes Flash
    • 128kbytes SRAM
    • External memory interface
    • 16-channel DMA controller
  • High-resolution timer
    • Offers 184ps resolution
  • Three CAN-FD controllers
  • Four I2C interfaces
  • Four serial peripheral interfaces
  • Serial audio interface
  • USB 2.0 Full-Speed interface
  • IRTIM infrared interface


  • Drones
  • Small electric vehicles
  • Radio-controlled vehicles

Development Board

Board Part Number: NUCLEO-G474RE

The STM32 Nucleo-64 MCU development board provides Arduino and ST morpho connectivity options for system expansion. It is supplied with an external switch-mode power supply for the core logic system. The board conforms to the Arm Mbed Enabled™ specifications.

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