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| PartNumber | STM8S903K3U6 | STM8S903K3U3TR | STM8S903K3U3 |
| Description | 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM | 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM | 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM |
| 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 | - |
| Package / Case | VFQFPN-32 | UFQFPN-32 | - |
| Series | STM8S903K3 | STM8S903K3 | STM8S903K3 |
| Core | STM8 | STM8 | STM8 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 16 MHz | 16 MHz | - |
| Program Memory Size | 8 kB | 8 kB | - |
| Data RAM Size | 1 kB | 1 kB | - |
| ADC Resolution | 10 bit | 10 bit | - |
| Number of I/Os | 28 I/O | 28 I/O | - |
| Operating Supply Voltage | 2.95 V to 5.5 V | 3.3 V, 5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 85 C | - |
| Product | MCU | - | - |
| Program Memory Type | Flash | Flash | - |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Data RAM Type | RAM | - | - |
| Data ROM Size | 640 B | - | - |
| Data ROM Type | EEPROM | - | - |
| Interface Type | I2C, SPI, UART | I2C, SPI, USART | - |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of ADC Channels | 7 Channel | 8 | - |
| Number of Timers/Counters | 2 x 16 bit, 1 x 8 bit | 9 Timer | - |
| Processor Series | STM8S | STM8 | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 2940 | 3000 | 2940 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.95 V | 2.95 V | - |
| Watchdog Timers | Watchdog Timer | - | - |
| Packaging | - | Reel | - |
| Height | - | 0.53 mm | - |
| Length | - | 5 mm | - |
| Width | - | 5 mm | - |
| Manufacturer | Part # | Description | RFQ |
|---|---|---|---|
STMicroelectronics |
STM8S903K3U6 | 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM | |
| STM8S903K3U3TR | 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM | ||
| STM8S903K3U6TR | 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM | ||
| STM8S903K3U3 | 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM | ||
| STM8S903K3U3 | Microcontrollers - MCU 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM | ||
| STM8S903K3U3TR | Microcontrollers - MCU 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM | ||
| STM8S903K3U6 | Microcontrollers - MCU 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM | ||
| STM8S903K3U6TR | Microcontrollers - MCU 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM |