First MCU series with SoC security services

Mouser now ships the STM32H5 microcontroller from STMicroelectronics. The device is the first microcontroller series with SoC security services accessible for the next generation of smart, connected devices in industrial automation, medical, smart city, smart home, personal electronics and communication.

The device is a high-performance MCU plus FPU based on the Arm Cortex-M33 32-bit RISC core, operating up to 250MHz, blending high performance with security and energy efficiency for mid-range MCU-based applications. The series is designed to perform 'in the edge' and strengthen defences against attacks on IoT assets. The Cortex-M33 core brings Arm TrustZone architecture together with the STM32Trust TEE Secure Manager, providing a range of security features, including SoC security services accessed via an industry-standard API. These security features save developers from writing their own code while providing security services developed according to known best practices, simplifying development while ensuring effective protection.

Challenging the perception that increased performance comes with power dissipation constraints for developers, the MCUs also improve energy efficiency by leveraging the company's advanced 40nm CMOS process technology and improved on-chip power-conversion circuits. With these MCUs, power dissipation is no longer a constraint when using a 250MHz device in harsh environments where the ambient temperature can reach 125C. Also, MCUs are SIL-ready for products that must meet an appropriate SIL, thanks to native hardware features that address various industrial and medical applications.

The MCUs embedded high-speed memories (128Kbytes of dual bank flash memory and 32Kbytes of SRAM) feature an extensive range of protection mechanisms for flash memory and SRAM. Enhanced I/Os and peripherals reinforce security with a HASH hardware accelerator and a true random number generator. The devices are offered in five packages from 25-pin to 64-pin, requiring a 1.71V to 3.6V power supply, and operate from -40C to +85C/105C and up to 125C at low dissipation (+130C junction) temperature.