PEmicro Blog

Added Support for STMicroelectronics STM32H543 and STM32H553 Devices

Sep 23, 2026

With the release of Cyclone software v11.81 and PROGACMP software v10.13, PEmicro development and production programmers now support the STMicroelectronics STM32H543 and STM32H553 microcontrollers.

The STM32H543 and STM32H553 devices are part of the STM32H5 series. They are based on the Arm® Cortex®-M33 core with TrustZone®, running at up to 250 MHz, and include up to 1 MB of dual-bank flash program memory with ECC and read-while-write support, and up to 304 KB of SRAM. The STM32H55x devices add hardware cryptographic acceleration for secure embedded designs.

These high-performance MCUs combine processing performance, security, and connectivity, including Ethernet, FD-CAN, USB, and Octo-SPI, for industrial and connected embedded applications.

New device support added for the following part numbers: STM32H543CET6, STM32H543CEU6, STM32H543CGT6, STM32H543CGU6, STM32H543RET6, STM32H543RGT6, STM32H543UGY6TR, STM32H543VEI6, STM32H543VET6, STM32H543VEZ3, STM32H543VGI6, STM32H543VGT6, STM32H543VGZ3, STM32H543ZEJ6, STM32H543ZET6, STM32H543ZEZ3, STM32H543ZGJ6, STM32H543ZGT6, STM32H543ZGZ3, STM32H553CGT6, STM32H553CGU6, STM32H553RGT6, STM32H553UGY6TR, STM32H553VGI6, STM32H553VGT6, STM32H553VGZ3, STM32H553ZGJ6, STM32H553ZGT6, STM32H553ZGZ3