Features

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 +85/125 °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 x 32-bit backup

registers and 2-Kbyte backup SRAM

• 160 nA Shutdown mode (24 wakeup pins)

• 210 nA Standby mode (24 wakeup pins)

• 440 nA Standby mode with RTC

• 1.9 μA Stop 3 mode with 16-Kbyte SRAM

• 4.3 μA Stop 3 mode with full SRAM

• 4.0 μA Stop 2 mode with 16-Kbyte SRAM

• 8.95 μA Stop 2 mode with full SRAM

• 19.5 μA/MHz Run mode @ 3.3 V

Core

• Arm® 32-bit Cortex®-M33 CPU with

TrustZone®, MPU, DSP, and FPU