STMicroelectronics STM8S series STM8S903F3M3TR, 8-bit MCU, STM8 core, 16 MHz, 8 KB Flash, 1K x 8 RAM, 640 x 8 EEPROM, 16 I/O, 5x10b ADC, I²C/SPI/UART/LIN, 2.95V–5.5V, -40°C to 125°C, 20-SOIC package.
| 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 ~ 125°C (TA) |
| Speed | 16MHz |
| Package | Tape & Reel (TR) |
| RAM size | 1K x 8 |
| Core size | 8-Bit |
| 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 | 8KB (8K x 8) |
On-chip peripherals include a 5-channel 10-bit ADC, PWM, and a full set of watchdog and brown-out reset functions.
At 16 MHz the core can service a UART at standard baud rates without bit-banging and handle a PID loop in microseconds.
Rated from -40°C to 125°C, this MCU operates on a supply range of 2.95 V to 5.5 V.
The core runs at 16 MHz, which is the listed speed for this STM8S-series microcontroller.