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