Manylebau
| Rhif Rhan | STM8S903F3M3 |
| Gwneuthurwr | STMicroelectroneg |
| Disgrifiad | IC MCU 8BIT 8KB FFLACH 20SO |
| Foltedd - Cyflenwad (Vcc/Vdd) | 2.95 V ~ 5.5 V |
| Cyflymder | 16MHz |
| Cyfres | STM8S |
| Maint RAM | 1K x 8 |
| Math Cof Rhaglen | FFLACH |
| Maint Cof Rhaglen | 8KB (8K x 8) |
| Perifferolion | Brown-out Canfod/Ailosod, POR, PWM, WDT |
| Pecynnu | Tiwb |
| Math Osgiliadur | Mewnol |
| Tymheredd Gweithredu | -40°C ~ 125°C (TA) |
| Nifer yr I/O | 16 |
| Maint EEPROM | 640 x 8 |
| Trawsnewidyddion Data | A/D 5x10b |
| Maint Craidd | 8-Did |
| Prosesydd Craidd | STM8 |
| Cysylltedd | CAN, I²C, IrDA, LIN, SPI, UART/USART |
