STM8S103F3P6TR STMicroelectronics IC MCU 8BIT 8KB FLASH 20TSSOP


The STM8S103F3P6TR is a microcontroller unit (MCU) manufactured by STMicroelectronics. Below is an overview of the STM8S103F3P6TR MCU:


STM8S103F3P6TR MCU Overview:

  • Manufacturer: STMicroelectronics
  • Part Number: STM8S103F3P6TR
  • Core Architecture: 8-bit STM8 Core
  • Flash Memory: 8KB
  • Package: 20-TSSOP (Thin Shrink Small Outline Package)
  • Operating Voltage: Typically operates at 3.3V or 5V
  • DataSheet

    STM8S103F3P6TR PDF

Key Features:

  • 8-bit Microcontroller: Based on the STM8 core architecture.
  • Flash Memory: Contains 8KB of flash memory for program storage.
  • Package Type: 20-TSSOP is a compact package suitable for space-constrained designs.
  • I/O Pins: Provides a number of general-purpose I/O pins for connectivity.
  • Peripherals: Includes a variety of built-in peripherals like timers, UART, SPI, I2C, and more.

Technical Specifications:

  • Clock Speed: Supports various clock speeds based on application requirements.
  • Operating Voltage: Typically operates at 3.3V or 5V, depending on the specific variant.
  • Analog-to-Digital Converter (ADC): Some variants may include an ADC for analog signal processing.
  • Communication Interfaces: UART, SPI, I2C for serial communication needs.
  • Timers and PWM Outputs: Integrated timers for generating precise timing and PWM signals.


  • Embedded Systems: Used in a wide range of embedded applications requiring control and processing capabilities.
  • Consumer Electronics: Found in consumer devices like appliances, toys, and more.
  • Automotive: Used in various automotive systems for control and monitoring functions.
  • Industrial Control: Deployed in industrial control systems for automation and monitoring.
  • IoT Devices: Enables connectivity and control in Internet of Things (IoT) devices.

Development Tools:

  • STMicroelectronics Development Tools: ST provides a range of development tools like STM8CubeMX, ST Visual Develop (STVD), and ST-LINK for programming and debugging.


  • Refer to the STM8S103F3P6TR datasheet and reference manual provided by STMicroelectronics for detailed information on pin configurations, electrical characteristics, programming, and interfacing with the MCU.
  • Community forums and resources can be valuable for getting started with development on the STM8 microcontroller series.

The STM8S103F3P6TR microcontroller from STMicroelectronics offers an 8-bit processing solution with flash memory and a variety of peripherals suitable for a diverse range of embedded applications, making it a versatile choice for control and processing tasks in various systems.