STMICROELECTRONICS STM32L021K4T6

STM32L021K4T6 is a access line ultra-low-power 32-bit MCU that incorporates the high-performance MUC Arm® Cortex®-M0+ 32-bit RISC core operating at a 32MHz frequency, high-speed embedded memories plus an extensive range of enhanced I/Os and peripherals. This provides high power efficiency for a wide range of performance. It is achieved with a large choice of internal and external clock sources, an internal voltage adaptation and several low-power modes. This offer several analogue features, one 12bit ADC with hardware oversampling, two ultra-low-power comparators, AES, several timers, one low-power timer (LPTIM), three general-purpose 16-bit timers, one RTC and one SysTick which can be used as timebases. This also feature two watchdogs, one watchdog with independent clock and window capability and one window watchdog based on bus clock.