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STM32H523/533

The STM32H523 and STM32H533 microcontrollers extend the STM32 high performance portfolio and offer enhanced performance, security, power efficiency and embedded peripherals.

The STM32H523 product line provides 256 to 512 Kbytes of Flash memory, 272 Kbytes SRAM, and 39 to 144 pins packages in BGA and LQFP profiles, as well as WLCSP39 and UFQFN48 packages.

The STM32H533 product line is available with 512 Kbytes of Flash memory and provides an additional encryption accelerator engine (AES, PKA, and OTFDEC), and ST-iROT.

These lines contain the Arm Cortex®-M33 core with TrustZone® for Armv8-M, DSP, and floating‐point unit (FPU) running up to 250 MHz with an optional extended ambient temperature range up to 125°C.

  • Performance
      At 250 MHz, the STM32H523/533 deliver 375 DMIPS/1023 CoreMark performance executing from Flash memory, with 0-wait states using ST’s ART Accelerator™.
  • Embedded peripherals
    • Up to 21 communication peripherals including MIPI-I3C, FDCAN, USB 2.0 full-speed host and device, USB Type-C® / USB Power Delivery, and camera interface
    • Easily extendable memory range using the flexible memory controller with a 16-bit parallel interface, or the Octo-SPI serial Flash memory interface
    • Multiple 16- and 32-bit timers
  • Security
      STM32H533 MCUs include the following additional security features:
      • STM32Trust RoT (ST-RoT), delivered as X-CUBE-STROT in Q4’2024:
      • Offering turnkey security services to manage confidentiality, authentication and update of software IP thanks to TrustZone®
      • Allows OEM or third-party companies to develop, protect, and isolate critical code from the rest of the main application
      • Abstract the complexity of TrustZone® configuration
    • Target SESIP3 and PSA certified level 3 certifications
    • TrustZone® mechanism for runtime code isolation
    • AES and Public Key Accelerator (PKA) side-channel hardware- resistant
    • TRNG FIPS SP800-90B compliant, target CMVP entropy validation certification
    • Secure Key storage with Hardware Unique Key (HUK)
    • Secure Firmware Install (SFI) for authenticated and protected software IP initial programming
    • Debug access controlled by ECDSA-P256 authentication
    • ST-iRoT: Pre-configured immutable Root of Trust, with secure boot, firmware update, serial loader, and secure debug mechanisms
  • Power efficiency
    • 110 µA/MHz typical at VDD = 3.3 V and 25°C in run mode (peripherals off)
    • 150 µA typical in stop mode with full RAM retention (low-power mode)
    • 3.5 µA typical in standby mode (low-power mode)
    • 570 nA typical in VBAT mode with RTC (low-power mode)

Applications:

Industrial
  • PLC
  • Industrial motor control
  • Pumps and compressors
Smart homes
  • Air conditioning systems
  • Refrigerators and freezers
  • Central alarm system
  • Washing machines
Personal electronics
  • Keyboards
  • Smartphones
  • IoT tags
  • Tracking devices
Smart cities
  • Industrial communication
  • Lighting controls
  • Digital power
Medical and healthcare
  • CPAP and respirators
  • Dialysis machines
  • Pill distributors
  • Powered patient beds

Product types:

STM32H523/H533 MCUs are targeting a broad range of applications requiring performance, high memory and peripheral integration, advanced security, and cost affordability. They are based on the Arm Cortex®-M33 core with TrustZone® for Armv8-M, DSP, and floating‐point unit (FPU) running up to 250 MHz with optional extended ambient temperature range up to 125 °C.

Discover our portfolio

The STM32H523/533 lines complement the STM32 product portfolio offering higher performance, high-performance peripheral and memory integration with 512 Kbytes of Flash memory, 272 Kbytes SRAM, and 39 to 144 pins packages in BGA and LQFP profiles, as well as WLCSP39 and UFQFN48 packages.

Benefits

  • More design freedom and reduced time to market
  • Performance in space-constrained devices
  • Simplified connectivity solution
  • Scalable security to address every need:
    • From the most essential security building blocks to fully certified services maintained by ST
  • STM32Trust RoT, a turnkey Root of Trust solution, ensuring your application and IPs protection, maintained and certified by STOptimized cost & performance trade-off based on ST’s optimized 40 nm process technology
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