STM32U5 Series Ultra-Low-Power MCUs

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STMicroelectronics' STM32U5 series offers advanced power-saving microcontrollers, based on Arm® Cortex®-M33 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 series of microcontrollers takes performance to the next level.

The STM32U5 offers a large portfolio with eight packages (from 48 to 169 pins) and supports up to +125°C ambient temperature.

  • Includes ST state-of-the-art patented technology
  • Ultra-low-power with FlexPowerControl
  • 1.71 V to 3.6 V power supply
  • -40°C to +85°C/+125°C temperature range
  • Low-power background autonomous mode (LPBAM): autonomous peripherals with DMA, functional down to stop 2 mode
  • VBAT mode: Supply for RTC, 32-bit x 32-bit backup registers and 2 Kbyte backup SRAM
  • 110 nA shutdown mode (24 wakeup pins)
  • 300 nA standby mode (24 wakeup pins)
  • 475 nA standby mode with RTC
  • 1.7 μA stop 3 mode with 16 Kbyte SRAM
  • 3.1 µA stop 3 mode with full SRAM
  • 3.4 µA stop 2 mode with 16-Kbyte SRAM
  • 6.6 µA stop 2 mode with full SRAM
  • 19.5 μA/MHz Run mode at 3.3 V
  • Core: 32-bit Arm Cortex-M33 CPU with TrustZone® and FPU