Features
■ Ultra-low-power platform – 1.65 V to 3.6 V power supply – -40 to 125 °C temperature range – 0.27 µA Standby mode (2 wakeup pins) – 0.4 µA Stop mode (16 wakeup lines) – 0.8 µA Stop mode + RTC + 8 KB RAM retention – 88 µA/MHz in Run mode – 3.5 µs wakeup time (from RAM) – 5 µs wakeup time (from Flash memory)
■ Core: ARM® 32-bit Cortex®-M0+ with MPU – From 32 kHz up to 32 MHz max. – 0.95 DMIPS/MHz
■ Reset and supply management – Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds – Ultra-low-power POR/PDR – Programmable voltage detector (PVD)
■ Clock sources – 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 – Internal self calibration of 48 MHz RC for USB – PLL for CPU clock
■ Pre-programmed bootloader – USART, SPI supported
■ Development support – Serial wire debug supported
■ Up to 29 fast I/Os (25 I/Os 5V tolerant)
■ Memories – 64 KB Flash memory with ECC – 8KB RAM – 2 KB of data EEPROM with ECC – 20-byte backup register – Sector protection against R/W operation
■ Rich Analog peripherals – 12-bit ADC 1.14 Msps with 10 channels (down to 1.65 V) – 12-bit 1 channel DAC with output buffers (down to 1.8 V) – 2x ultra-low-power comparators (window mode and wake up capability, down to 1.65 V)
■ Up to 14 capacitive sensing channels supporting touchkey, linear and rotary touch sensors
■ 7-channel DMA controller, supporting ADC, SPI, I2C, USART, DAC, Timers, AES
■ 8x peripheral communication interfaces – 1x USB 2.0 crystal-less, battery charging detection and LPM – 2x USART (ISO 7816, IrDA), 1x UART (low power) – 3x SPI 16 Mbits/s – Up to 2x I2C (SMBus/PMBus)
■ 9x timers: 1x 16-bit with up to 4 channels, 2x 16-bit with up to 2 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, 1x RTC, 1x 16-bit basic for DAC, and 2x watchdogs (independent/window)
■ CRC calculation unit, 96-bit unique ID
■ True RNG and firewall protection
■ Hardware Encryption Engine AES 128-bit
■ All packages are ECOPACK®2 UFQFPN32 (5x5 mm) LQFP32 (7x7 mm) Standard and thin WLCSP36 2.61x2.88 mm