SiM3L1xx Low Power MCUs

Silicon Labs’ ultra low-power Precision32™ SiM3L1xx 32-bit microcontrollers (MCUs) feature significant peripheral and architectural innovations, including an integrated dc-dc converter that helps save power in active mode as well as a redesigned LCD controller that can reduce the power consumed by the LCD display.

Autonomous peripherals off-load the 50 MHz ARM® Cortex®-M3 CPU and further decrease processing time and power. Full RAM and state retention enables instantaneous code execution after waking up from sleep. Flash memory sizes range from 32 to 256 kB, and the MCUs come in packages as small as 5.5 mm x 5.5 mm. Enhanced Precision32 tools can simplify the development process by estimating power consumption and providing configuration guidance to achieve the lowest power.


  • Up to 256 kB flash
  • Up to 32 kB RAM
  • Up to 62 GPIOs
  • 50 MHz Cortex-M3 core
  • Integrated dc-dc converter
  • Variety of wake sources
  • 128 or 160 segment LCD controller
  • Sensor interface
  • Hardware AES, CRC, encode/decode
  • Enhanced DMA with DTM
  • 10-bit 1 Msps or 12-bit 250 ksps ADC
  • Current mode DAC
  • 2 x SPI, UART and I²C
  • Analog comparators
  • Enhanced PCA, timers
  • Voltage reference and temperature sensor
  • Available in 40, 64, 80-pin packages

Getting Started with SiM3L1xx

SiM3L1xx LCD UDP Development Kit

The easiest way to begin development with the SiM3L1xx AEC-Q100 qualified, low-cost microcontroller family is with the fully functional SiM3L1xx LCD UDP development kit.

Add to Cart

SiM3L1xx Product Matrix

Part Number Data Sheet Dev Kit MHz Flash (kB) RAM (kB) Dig I/O Pins 5 Volt Tolerant ADC 1 DAC USB Cap Sense LCD Temp Sensor Timers (16-bit) AES-128 AES-256 ECC SHA-1 SHA-2 RSA-2048 UART USART SPI I²C I²S EMIF RTC Comparators Vdd (min) Vdd (max) Package Type Package Size Internal Osc. Debug Interface
Contact Sales Contact Sales
Loading Results