The fastest way to connect to the cloud

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If you already have the B-U5851_IOT02A Discovery Kit, you can access this GitHub repository to experience IoTConnect.

This quick start demonstration uses symmetric key authentication in the IoTConnect template. After configuration, you will be able to access the temperature, humidity, air pressure and the user button on the Discovery Kit.

Discover the secure, high-performance, and ultra-low power STM32 microcontrollers that will revolutionize your design.

The STM32U5 microcontrollers combine the Arm® Cortex®-M33 core with power-saving features and advanced security to meet the most demanding power/ performance requirements for smart applications, including wearables, personal medical devices, home automation, and industrial sensors.

Offering up to 2 Mbytes of Flash (dual bank) memory and 786 Kbytes of SRAM, the STM32U5 microcontrollers take performance to the next level.

The STM32U5 offers 8 packages (from 48 to 169 pins) and supports up to 125°C ambient temperature.

Enhanced security

Building on the cyber security features of the STM32L5 MCU, with its Arm Cortex-M33 core that incorporates Arm’s TrustZone® technology and an ST-specific security feature set, the STM32U5 series introduces state-of-the-art innovations:

• AES encryption and Public Key Accelerator (PKA) are now side-channel hardware- resistant
• Secure data storage with a Hardware Unique Key (HUK)
• Active tamper detection. Internal monitoring, that can erase secret data in the event of perturbation attacks, helps meet the PCI Security Standards Council (PCI SSC) requirements for Point Of Sales (POS) applications.
• PSA Certified level 3 and SESIP (Security Evaluation Standard for IoT Platforms) level 3 certified

Integration, size and performance

• Ensures enhanced application responsiveness:
  • Arm Cortex-M33 running at 160 MHz
  • New ST ART Accelerator: working both on internal and external Flash (8 Kbytes of instruction cache)
  • 240 DMIPS and 651 CoreMark scores
• Up to 0.5 Mbytes of on-chip Flash offers increased cycle life, up to 100,000 read/write cycles to ensure reliable storage of user data.
• High integration and innovation: large memory with ECC on Flash and SRAM, USB Type-C w/power delivery controller, CAN FD, 14- and 12-bit ADC, Multi-function Digital Filter (MDF) and Audio Digital Filter (ADF)
• Large portfolio: 8 package types (LQFP48, QFN48, LQFP64, WLCSP90, LQFP100, UFBGA132, LQFP144 and UFBGA169)

Block diagrams

Hardware tools

Development board

NUCLEO-U575ZI-Q - STM32 Nucleo-144 development board with STM32U575ZIT6Q MCU, SMPS, supports Arduino, ST Zio and morpho connectivity

The STM32 Nucleo-144 board provides an affordable and flexible way for users to try out new concepts and build prototypes by choosing from the various combinations of performance and power consumption features, provided by the STM32 microcontroller.

Evaluation board

STM32U575I-EV - board with STM32U575AI MCU

The STM32U575I-EV Evaluation board is designed as a complete demonstration and development platform for the STMicroelectronics Arm® Cortex®-M33 core‑based microcontroller with Arm® TrustZone® and the Armv8-M mainline security extension.

Development board

NUCLEO-U545RE-Q - STM32 Nucleo-64 development board with STM32U545RE MCU, SMPS, supports Arduino, ST Zio and morpho connectivity

The STM32 Nucleo-64 board provides an affordable and flexible way for users to try out new concepts and build prototypes by choosing from the various combinations of performance and power consumption features, provided by the STM32 microcontroller. For the compatible boards, the external SMPS significantly reduces power consumption in Run mode.

Discovery kit

STM32U5A9J-DK - Discovery kit with STM32U5A9xx MCU

The STM32U5A9J-DK Discovery kit is a complete demonstration and development platform for the STM32U5A9NJH6Q microcontroller, featuring an Arm® Cortex®‑M33 core with Arm® TrustZone®.

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