STM32L031E4 Datasheet | STMicroelectronics

Features - Ultra-low-power platform - 1.65 V to 3.6 V power supply - -40 to 125 °C temperature range - 0.23 µA Standby mode (2 wakeup pins) - 0.35 µA Stop mode (16 wakeup lines) - 0.6 µA Stop mode + RTC + 8 KB 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 k Hz up to 32 MHz max. - 0.95 DMIPS/MHz - Reset and supply management - Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds - Ultralow power POR/PDR - Programmable voltage detector (PVD) - Clock sources - 1 to 25 MHz crystal oscillator - 32 k Hz oscillator for RTC with calibration - High speed internal 16 MHz factory-trimmed RC (+/- 1%) - Internal low-power 37 k Hz RC - Internal multispeed low-power 65 k Hz to 4.2 MHz RC - PLL for CPU clock - Pre-programmed bootloader - USART, SPI supported - Development support - Serial wire debug supported - Up to 38 fast I/Os (31 I/Os 5V tolerant) - Memories - Up to 32-Kbyte Flash with ECC - 8-Kbyte RAM - 1-Kbyte of data EEPROM with ECC - 20-byte backup register - Sector protection against R/W operation TSSOP20 UFQFPN28 4x4 mm 169 mils UFQFPN32 5x5 mm UFQFPN48 7x7 mm LQFP32/48 7x7 mm WLCSP25 2.097x2.493 mm - - Rich Analog...