STM32L051C8T3

Ultra-low-power 32-bit MCU based on Arm® Cortex®-M0+, up to 64KB Flash, 8KB SRAM, 2KB EEPROM, with ADC.

Key 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 -Kbyte 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
• Up to 64-Kbyte Flash memory with ECC
• 8-Kbyte RAM
• 2 Kbytes 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)
• Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
• Ultra-low-power POR/PDR
• Programmable voltage detector (PVD)
• 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 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 ECOPACK2