Ultra-low-power platform
1.8 V to 3.6 V power supply
–40 to 85 °C temperature range
0.23 μA Standby mode (2 wakeup pins)
0.29 μA Stop mode (16 wakeup lines)
0.54 μA Stop mode + RTC + 2-Kbyte RAM retention
Down to 76 μA/MHz in Run mode
5 μs wakeup time (from Flash memory)
41 μA 12-bit ADC conversion at 10 ksps
Core: Arm® 32-bit Cortex®-M0+
From 32 kHz to 32 MHz
0.95 DMIPS/MHz
Reset and supply management
Ultra-low-power BOR (brownout reset) with 5 selectable thresholds
Ultra-low-power POR/PDR
Clock sources
0 to 32 MHz external clock
32 kHz oscillator for RTC with calibration
High-speed internal 16 MHz factory-trimmed RC (±1%)
Internal low-power 37 kHz RC
Internal multispeed low-power 65 kHz to 4.2 MHz RC
PLL for CPU clock
Pre-programmed bootloader
USART, SPI supported
Development support
Serial wire debug supported
Up to 26 fast I/Os (23 I/Os 5-Volt tolerant)
Memories
16-Kbyte Flash memory
2-Kbyte RAM
128 bytes of data EEPROM
20-byte backup register
Sector protection against R/W operation