STM32L071K8U3

This is an ultra-low-power platform based on an Arm 32-bit Cortex-M0+ core (with MPU), featuring multiple low-power modes, rich memory configurations, diverse peripheral interfaces, and a variety of package options.

Key features

• Ultra-low-power platform
• 1.65 V to 3.6 V power supply
• -40 to 125 °C temperature range
• 0.29 μA Standby mode (3 wakeup pins)
• 0.43 μA Stop mode (16 wakeup lines)
• 0.86 μA Stop mode + RTC + 20-Kbyte RAM retention
• Down to 93 μA/MHz in Run mode
• 5 μs wakeup time (from Flash memory)
• 41 μA 12-bit ADC conversion at 10 ksps
• Core: Arm 32-bit Cortex®-M0+ with MPU
• From 32 kHz up to 32 MHz max.
• 0.95 DMIPS/MHz
• Up to 192-Kbyte Flash memory with ECC (2 banks with read-while-write capability)
• 20-Kbyte RAM
• 6 Kbytes of data EEPROM with ECC
• 20-byte backup register
• Sector protection against R/W operation
• Up to 84 fast I/Os (78 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, I2C, SPI 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
• Up to 10x peripheral communication interfaces
• 4x USART (2 with ISO 7816, IrDA)
• 1x UART (low power)
• Up to 6x SPI 16 Mbits/s
• 3x I2C (2 with SMBus/PMBus)
• 11x timers: 2x 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, 2x 16-bit basic, and 2x watchdogs (independent/window)
• CRC calculation unit, 96-bit unique ID
• All packages are ECOPACK2