The STM32L051x8 devices 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.
The STM32L051x8 devices offer several analog features, one 12-bit ADC with hardware oversampling, two ultra-low-power comparators, several timers, one low-power timer (LPTIM), three general-purpose 16-bit timers and one basic timer, one RTC and one SysTick which can be used as timebases. They also feature two watchdogs, one watchdog with independent clock and window capability and one window watchdog based on bus clock.
Moreover, the STM32L051x8 devices embed standard and advanced communication interfaces: up to two I2C, two SPIs, one I2S, two USARTs, a low-power UART (LPUART). They also include a real-time clock and a set of backup registers that remain powered in Standby mode.
The ultra-low-power STM32L051x8 devices operate from a 1.8 to 3.6 V power supply (down to 1.65 V at power down) with BOR and from a 1.65 to 3.6 V power supply without BOR option. They are available in the -40 to +125 �C temperature range. A comprehensive set of power-saving modes allows the design of low-power applications.
- Ultra-low-power platform
- 1.65 V to 3.6 V power supply
- Arm 32-bit Cortex-M0+ with MPU
- 64-Kbyte Flash memory with ECCs
- 8-Kbyte RAM
- 2 Kbytes of data EEPROM with ECC
- Pre-programmed bootloader
- Analog peripherals
- 7-channel DMA controller, supporting ADC, SPI, I2C, USART, Timers
- 9 timers