STM32U5 achieves 19 μA/MHz in Run mode and 300 nA in Standby, setting a benchmark for ultra-low-power microcontrollers in battery-operated IoT nodes. TrustZone and PSA Certified Level 3 security provide hardware root-of-trust, secure boot, and encrypted OTA firmware updates, meeting IEC 62443-4-2 IoT device security requirements. 2 MB dual-bank flash allows live firmware updates without service interruption. The 3D hardware accelerator for SHA/AES/PKA cryptography offloads security processing from the application core, maintaining throughput with minimal power overhead. The Arduino and ST Morpho headers support over 500 expansion boards from the STM32 ecosystem.
IoT Product
Hardware & Devices
STMicroelectronics STM32U5 Nucleo Board
STM32U5 Nucleo-144 is an ultra-low-power Arm Cortex-M33 development board with TrustZone security, PSA Certified Level 3, and direct USB-C connection for edge IoT and wearable device development.