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STMicroelectronics STM32L011K4

STMicroelectronics STM32L011K4 - Ultra-low-power ARM Cortex-M0+ MCU

The access line ultra-low-power STM32L011xx family incorporates the high-performance ARM® Cortex®-M0+ 32-bit RISC core operating at a 32 MHz, high-speed embedded memories (up to 16 Kbytes of Flash program memory, 512 bytes of data EEPROM and 2 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals. It offers 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, one RTC and one SysTick which can be used as timebases. Moreover, the devices embed standard and advanced communication interfaces.

The STM32L011xx also include a real-time clock and a set of backup registers that remain powered in Standby mode. The ultra-low-power STM32L011xx devices operate from a 1.8 to 3.6 V power supply (down to 1.65 V at power down) and are available in the -40 to +125 °C temperature range. A comprehensive set of power-saving modes allows the design of low-power applications.

Features and Benefits

  • ARM® 32-bit Cortex®-M0+ with 32 kHz to 32 MHz max.
  • Up to 16 KB Flash memory with ECC, 2 KB RAM, 512 B EEPROM
  • 1.65 V to 3.6 V power supply
  • Down to 76 μA/MHz in Run mode
  • 5 μs wakeup time (from Flash memory)
  • Multiple clock sources
  • 7-channel DMA controller
  • 12-bit ADC 1.14 Msps up to 10 channels (down to 1.65 V)
  • 2x ultra-low-power comparators
  • Several small package options
  • -40 to 125 °C temperature range


  • Gas/water meters and industrial sensors
  • Healthcare and fitness equipment
  • Remote control and user interface
  • PC peripherals, gaming, GPS equipment
  • Alarm system
  • Wired and wireless sensors

Development Kit

NUCLEO-L011K4 - STM32 Nucleo-32 development board with STM32L011K4T6 MCU, supports Arduino connectivity. Read more here.

Block Diagram