When you need robust security, rich connectivity, and efficient memory use in a more compact device, the STM32H543/553 MCU lines give you a practical place to start.
Built on the Arm Cortex-M33 core with TrustZone for Armv8-M and running at up to 250 MHz, it combines up to 1 Mbyte of dual-bank flash, 304 Kbytes of RAM, advanced security features, and a broad set of integrated peripherals.
When you need robust security, rich connectivity, and efficient memory use in a more compact device, the STM32H543/553 MCU lines give you a practical place to start.
Built on the Arm Cortex-M33 core with TrustZone for Armv8-M and running at up to 250 MHz, it combines up to 1 Mbyte of dual-bank flash, 304 Kbytes of RAM, advanced security features, and a broad set of integrated peripherals.
Key features
- Up to 1 Mbyte of dual-bank flash and 304 Kbytes of RAM for secure embedded designs in a compact memory footprint
- Integrated connectivity including Ethernet, FDCAN, USB FS, UCPD, I2C, I3C, and external memory interfaces
- STM32H543 options with 512 Kbytes to 1 Mbyte of flash memory, 304 Kbytes of SRAM, and packages from 48 to 144 pins in BGA and LQFP, plus WLCSP63 and UFQFN48
- STM32H553 advanced security with an encryption accelerator engine including AES, PKA, and OTFDEC, together with ST-iROT
Applications
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Supported by the STM32 ecosystem and available in a wide range of packages, STM32H543/553 helps you build secure, flexible, and high-performance embedded systems with less compromise.
Benefits
More design freedom and reduced time to market
- Performance in space-constrained devices
- Simplified connectivity solution
Scalable security to address every need
- STiRoT: Root of Trust (secure boot)
- PSA Level 3 and SESIP3 target certifications