| PartNumber | STM8S903F3P6TR | STM8S903F3P6 | STM8S903F3P3 |
| Description | 8-bit Microcontrollers - MCU App specific line 8-bit MCU 8Kb | 8-bit Microcontrollers - MCU Perform Line 14 MHz STM8S 8-bit MCU | 8-bit Microcontrollers - MCU 8-bit Performance LN 16 Mhz 8kb Flash |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TSSOP-20 | TSSOP-20 | TSSOP-20 |
| Series | STM8S903F3 | STM8S903F3 | STM8S903F3 |
| Core | STM8 | STM8 | STM8 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz |
| Program Memory Size | 8 kB | 8 kB | 8 kB |
| Data RAM Size | 1 kB | 1 kB | 1 kB |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 125 C |
| Packaging | Reel | - | - |
| Program Memory Type | Flash | Flash | Flash |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Data RAM Type | RAM | RAM | RAM |
| Data ROM Size | 640 B | 640 B | 640 B |
| Data ROM Type | EEPROM | EEPROM | EEPROM |
| Processor Series | STM8S | STM8S | STM8S |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 2500 | 1480 | 1480 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Unit Weight | 0.006737 oz | 0.006737 oz | 0.006737 oz |