Microcontrolador STMicroelectronics STM32L051R6T6, núcleo ARM Cortex M0+ de 32bit, RAM 8 kB, 32MHZ, LQFP de 64 pines

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 Memories Up to 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 Up to 51 fast I/Os (45 I/Os 5V tolerant) 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 1 to 25 MHz crystal oscillator 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 Rich Analogue peripherals 12-bit ADC 1.14 Msps up to 16 channels (down to 1.65 V) 2x ultra-low-power comparators (window mode and wake up capability, down to 1.65 V) 7-channel DMA controller, supporting ADC, SPI, I2C, USART, Timers 7x peripheral communication interfaces 2x USART (IrDA), 1x UART (low power) Up to 4x SPI 16 Mbits/s 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, and 2x watchdogs (independent/window) CRC calculation unit, 96-bit unique ID