STM32H5 Series

Thumbnail STM32H5 MCU introduction

Performance and security: the best of both worlds

The STM32H5 series is based on the 32-bit Arm® Cortex®-M33 core running as high as 250 MHz. It offers the best combination of performance and security, in an affordable way.

Offering up to 2 Mbytes of flash memory in dual-bank memory , up to 640 Kbytes of SRAM and high peripheral integration, the STM32H5 series of microcontrollers offers developers from design freedom.

The STM32H5 portfolio offers large package option from 25- to 176-pin. It supports up to 125°C ambient temperature, making it suitable for harsh environments.

The STM32H5 provides a scalable security offer to address every need, including the security requirements of IoT devices. Developers can choose between several offers ranging from: the most essential security services to fully certified building blocks maintained by ST over the product lifecycle. This MCU series gives you more flexibility in your design choices.


Industrial arm
  • Programmable logic controllers (PLC)
  • Industrial motor control
  • Pumps and compressors
  • Air conditioners
  • Refrigerators and freezers
  • Central alarm systems
  • Washing machines
Smart watch
  • Keyboards
  • Smartphones
  • IoT tags and tracking devices
  • Industrial communication
  • Lighting controls
  • Digital power
Thunder in the middle of a heart
  • CPAP and respirators
  • Dialysis machines
  • Pills distributors
  • Powered patient beds

Product types:


Arm® Cortex®-M33 with TrustZone® at 250 MHz
Up to 2 Mbytes of flash memory and 640 Kbytes of RAM
Ethernet, SMPS option, hardware encryption accelerator (for STM32H573)


Arm® Cortex®-M33 with TrustZone® at 250 MHz
Up to 2 Mbytes of flash memory and 640 Kbytes of RAM


Arm® Cortex®-M33 at 250MHz
128 Kbytes of flash memory and 32 Kbytes of RAM

Discover our portfolio

The STM32H5 series expands the STM32 product portfolio with more performance, more memory and peripherals, and a scalable security offer at an affordable cost.


  • High performance: industry-first 32-bit MCU with Arm Cortex-M33 core running as high as 250 MHz
    • Scalable security:
    • From the most essential security services to fully certified building blocks, which are maintained by ST
    • First STM32 MCU with a trusted execution environment (TEE), called the Secure Manager. This contributes to simplifying the customer journey and provides seamless cloud/server support.
  • Affordable: the MCUs are based on ST’s optimized 40 nm process technology and large choice of memory, peripherals, and package options.
Simplify your approach to security with STM32Trust!
A solution to enhance security in your new product designs.
STM32 MCU Developer Zone
Everything for STM32 MCU developers, in one place.
[new board] STM32H5 Discovery kit: bring new ideas to life!
More from STM32H5 Series portfolio
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