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| PartNumber | STM8S903F3M3 | STM8S903F3M6 | STM8S903F3M3TR |
| Description | 8-bit Microcontrollers - MCU 8 BITS MICROCONTR | 8-bit Microcontrollers - MCU 8-bit Performance LN 16 Mhz 8kb Flash | 8-bit Microcontrollers - MCU Mainstream Application specific line 8-bit MCU with 8 Kbytes Flash, 16 MHz CPU, integrated EEPROM |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | - |
| Series | STM8S903F3 | STM8S903F3 | STM8S903F3 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 1000 | 1000 | 1000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Mounting Style | - | SMD/SMT | - |
| Package / Case | - | SOP-20 | SO-20 |
| Core | - | STM8 | - |
| Data Bus Width | - | 8 bit | - |
| Maximum Clock Frequency | - | 16 MHz | - |
| Program Memory Size | - | 8 kB | - |
| Data RAM Size | - | 1 kB | - |
| ADC Resolution | - | 10 bit | - |
| Number of I/Os | - | 16 I/O | - |
| Operating Supply Voltage | - | 5.5 V | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Maximum Operating Temperature | - | + 85 C | - |
| Program Memory Type | - | Flash | - |
| Data RAM Type | - | RAM | - |
| Data ROM Size | - | 640 B | - |
| Data ROM Type | - | EEPROM | - |
| Interface Type | - | I2C, SPI, UART | - |
| Number of ADC Channels | - | 5 | - |
| Number of Timers/Counters | - | 2 Timer | - |
| Processor Series | - | STM8S | - |
| Supply Voltage Max | - | 5.5 V | - |
| Supply Voltage Min | - | 2.95 V | - |
| Unit Weight | - | 0.009408 oz | - |