STMicroelectronics STM8S103F2M6TR, 8-bit STM8 core MCU, 16 MHz, 4 KB Flash, 1 KB RAM, 640 B EEPROM, 20-SOIC wide, -40 to 85°C, 2.95 to 5.5 V.
| Parameter | Value |
|---|---|
| Series | STM8S |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.95V ~ 5.5V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 16MHz |
| RAM size | 1K x 8 |
| Core size | 8-Bit |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| EEPROM size | 640 x 8 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I2C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 16 |
| Core processor | STM8 |
| Case | 20-SOIC (0.295\", 7.50mm Width) |
| Data converters | A/D 5x10b |
| Program memory size | 4KB (4K x 8) |
It carries 4 KB of Flash program memory, 1 KB of RAM, and 640 bytes of data EEPROM — a memory map sized for compact control firmware, sensor readout, or simple communication protocols.
Surface-mount only; no through-hole variant in this order code.
Within the STM8S103 series, the STM8S103F3x6 variants offer the same pinout and package options with larger Flash memory (8 KB). The F2 and F3 are footprint- and function-compatible, differing only in program memory density — a direct upgrade path if the 4 KB ceiling gets tight.