Szymon Panecki

[STM8L001J3] Low-power STM8 MCU in 8-pin SO-8 package

Blog Post created by Szymon Panecki Employee on Dec 9, 2017

Dear STM8 users,


ST has just officialy introduced to the market new low-cost, low-power 8-bit MCU from STM8 family. This device is named STM8L001J3 and its key new features are small pin count (8 pins) and tiny package (SO8N).



After introducing in July first 8-pin STM8 MCU (STM8S001J3), new STM8L001J3 complements portofolio of 8-pin STM8 MCUs.


STM8L001J3 belongs to STM8L Value line of ultra-low-power microcontrollers. It offers the best price-to-performance ratio for cost-sensitive applications. With a similar core performance and peripheral set as the STM8L151/152 line, Value line has been optimized in terms of features and configurations to reach a budget price.


Some of important features of STM8L001J3:


  • Core and system
    • 2 internal clock sources (HSI 16MHz, LSI 38kHz)
    • Suply voltage range: from 1.8V to 3.6V
    • 6 I/Os
  • Timing peripherals
    • 8- and 16-bit general purpose timers
    • Auto-wakeup unit
    • Watchdog
  • Memories
    • 8k Flash
    • 1.5k RAM
    • 2k EEPROM
  • Conenctivity and debug
    • UART
    • SPI
    • I2C
    • Single Wire Interface Module (SWIM)
  • Analog
    • 2 comparators



You can start your design based on STM8L001J3 with free of charge development tools: Cosmic compiler, STM8CubeMX, Standard Peripheral Library and STVD IDE.


More information you can find on STM8L001J3 webpage.


Hardware getting started: minimum hardware needed for STM8L001J3 is decoupling circuitry (10uF + 100nF). It needs to be applied between VDD and VSS pins.