Description
Description
The STM8S103F3P6 Minimum System Development Board is a compact, cost-effective, and powerful entry point into the world of STM8S microcontroller development. Built around the robust STM8S103F3P6 8-bit MCU from STMicroelectronics, this core board provides everything you need to start prototyping embedded applications immediately.
This development board breaks out all microcontroller pins to standard 2.54mm headers, making it easy to integrate into breadboards or custom PCBs. The Micro USB interface serves as a convenient power input, compatible with common smartphone charging cables. Unlike older boards using the outdated Mini-USB standard, this modern interface ensures you can power your projects with cables you already own.
The heart of the board is the STM8S103F3P6 microcontroller, featuring an advanced STM8 core with Harvard architecture and a 3-stage pipeline capable of running at up to 16 MHz. With 8 Kbytes of Flash program memory, 1 Kbyte of RAM, and 640 bytes of true data EEPROM, this MCU offers a balanced feature set for a wide range of applications. The true EEPROM allows for data retention of up to 20 years at 55°C after 10k cycles, making it suitable for storing calibration constants or user settings without external memory chips.
The board includes a SWIM (Single Wire Interface Module) connector for programming and debugging, a reset button for easy system restart, and a user LED connected to PORTB_5 for basic output testing. An onboard 3.3V voltage regulator allows the board to accept input voltages from 4.5V to 15V via the power pads or the Micro USB port.
Whether you are a student learning embedded systems, a hobbyist building a DIY project, or a professional developing cost-sensitive industrial controls, this STM8S103F3P6 minimum system board delivers exceptional value in a tiny 30mm × 20mm footprint.
Key Features
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STM8S103F3P6 Microcontroller – 16MHz advanced STM8 core with Harvard architecture and 3-stage pipeline
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Memory Resources – 8 Kbytes Flash, 1 Kbyte RAM, 640 bytes true data EEPROM
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Micro USB Power Interface – Convenient power input using common smartphone cables; compatible with Micro USB chargers and power banks
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All Pins Broken Out – All 16 GPIO pins accessible via 2.54mm headers for easy breadboard and PCB integration
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SWIM Programming Interface – Single-wire debug and programming port for use with ST-Link programmers
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Onboard Reset Button – Physical reset button for easy system restart during development
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User LED – Built-in LED connected to PORTB_5 for basic output testing and debugging
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Wide Power Input Range – 4.5V to 15V input via power pads; onboard 3.3V regulator
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Rich Peripherals – 10-bit ADC (5 channels), UART, SPI, I²C, multiple timers
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Compact Form Factor – Extremely small board (approx. 30mm × 20mm) for space-constrained projects
Technical Specifications
| Specification | Value |
|---|---|
| Microcontroller | STM8S103F3P6 (8-bit, STM8 core) |
| Clock Speed | Up to 16 MHz |
| Flash Memory | 8 Kbytes |
| RAM | 1 Kbyte |
| EEPROM | 640 bytes (true data EEPROM) |
| Operating Voltage (MCU) | 2.95V – 5.5V DC |
| Input Voltage (Board) | 4.5V – 15V DC (via power pads) |
| Digital I/O Pins | 16 (all broken out to headers) |
| ADC Channels | 5 × 10-bit |
| Communication Interfaces | UART, SPI, I²C |
| Timers | Advanced 16-bit timer, 16-bit general purpose, 8-bit basic timer, watchdog timers |
| Programming Interface | SWIM (Single Wire Interface Module) |
| Board Dimensions | 30mm × 20mm (approx.) |
| Operating Temperature | -40°C to +85°C |
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