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STMicroelectronics — STM32U3B5/STM32U3C5 Microcontrollers

STMicroelectronics

 

STMicroelectronics STM32U3B5/STM32U3C5 Microcontrollers

Ultra-low-power MCUs with integrated hardware AI acceleration

STMicroelectronics STM32U3B5 and STM32U3C5 microcontrollers combine an Arm® Cortex®-M33 core with ST's innovative Hardware Signal Processing (HSP) technology to deliver exceptional ultra-low-power performance for edge AI and digital signal processing applications. Featuring up to 2 MB of dual-bank Flash, 640 KB of RAM, and advanced connectivity including FDCAN and I3C, these MCUs provide the performance, efficiency, and security needed for next-generation embedded systems.

Designed for battery-powered and mission-critical applications, the STM32U3 series enables developers to accelerate AI workloads while minimizing power consumption. Full support within the STM32Cube ecosystem simplifies development, helping reduce design complexity and accelerate time to market.

Features

  • Arm® Cortex®-M33 core
  • ST Hardware Signal Processing (HSP) technology for AI and DSP acceleration
  • Up to 2 MB dual-bank Flash memory
  • 640 KB RAM
  • Integrated FDCAN and I3C interfaces
  • Ultra-low-power near-threshold architecture
  • Advanced hardware security features
  • Packages ranging from 48 to 144 pins
  • Supported by the STM32Cube software ecosystem

Benefits

  • Delivers edge AI performance with exceptional power efficiency
  • Accelerates DSP and AI processing while reducing energy consumption
  • Protects sensitive data with advanced hardware security
  • Simplifies software development with STM32Cube tools and libraries
  • Supports scalable embedded designs across multiple package options
  • Optimizes performance for battery-powered and always-on applications

Applications

  • Medical devices
  • Industrial automation

 

  • Consumer electronics
  • Smart metering systems

 

STM32U3B5/STM32U3C5 Block Diagram

STMicroelectronics STM32U3B5/STM32U3C5 Microcontrollers Block Diagram

 


STMicroelectronics STM32U3B5/STM32U3C5 Microcontrollers