Features
■ 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
■ Analog peripherals – 12-bit ADC 1.14 Msps up to 10 channels (down to 1.8 V)
■ 5-channel DMA controller, supporting ADC, SPI, I2C, USART and timers
■ 4x peripherals communication interface
■ 1x USART, 1x LPUART (low power)
■ 1x SPI 16 Mbit/s
■ 1x I2C (SMBus/PMBus)
■ 7x timers: 1x 16-bit with up to 4 channels, 1x 16-bit with up to 2 channels, 1x 16-bit ultra-low- power timer, 1x SysTick, 1x RTC and 2x watchdogs (independent/window)
■ CRC calculation unit, 96-bit unique ID
■ All packages are ECOPACK2 compliant. LQFP32 7 x 7 mm TSSOP20 169 mils