STM32L051C6T6 IC Memory Chip Access line ultra-low-power 32-bit MCU ARM®-based Cortex®-M0+, up to 64 KB Flash, 8 KB SRAM

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

– 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 

Up to 51 fast I/Os (45 I/Os 5V tolerant) 

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

Rich Analog 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 (ISO 7816, 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 

All packages are ECOPACK®2