
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
| Attributes | Value | |
|---|---|---|
| Category | Embedded Processors & Controllers/ST Microelectronics | |
| Manufacturer | STMicroelectronics | |
| Package | UFQFPN-20(3x3) | |
| Core Processor | STM8 | |
| Speed | 16MHz | |
| Program Memory Type | FLASH | |
| USB Device | 0 | |
| PWM | 3 | |
| RAM Size | 1KB | |
| Number of I/O | 28 | |
| USB Host/OTG | 0 | |
| LCD | 0 | |
| SPI | 1 | |
| EEPROM Size | 640Bytes | |
| CAN | 0 | |
| UART/USART | 1 USART | |
| A/D | 5x10bit | |
| Ethernet | 0 | |
| D/A | 0 | |
| Core Size | 8-Bit | |
| Features | IrDA,ISO 7816 | |
| Program Memory Size | 8KB | |
| Voltage - Supply (Vcc/Vdd) | 2.95V~ 5.5V | |
| I2C(SMBUS/PMBUS) | 1 |

* Images are for reference only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.

* Images are for reference only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
STM8S103F3U6 technical specifications, attributes, and parameters.
| Attributes | Value | |
|---|---|---|
| Category | Embedded Processors & Controllers/ST Microelectronics | |
| Manufacturer | STMicroelectronics | |
| Package | UFQFPN-20(3x3) | |
| Core Processor | STM8 | |
| Speed | 16MHz | |
| Program Memory Type | FLASH | |
| USB Device | 0 | |
| PWM | 3 | |
| RAM Size | 1KB | |
| Number of I/O | 28 | |
| USB Host/OTG | 0 | |
| LCD | 0 | |
| SPI | 1 | |
| EEPROM Size | 640Bytes | |
| CAN | 0 | |
| UART/USART | 1 USART | |
| A/D | 5x10bit | |
| Ethernet | 0 | |
| D/A | 0 | |
| Core Size | 8-Bit | |
| Features | IrDA,ISO 7816 | |
| Program Memory Size | 8KB | |
| Voltage - Supply (Vcc/Vdd) | 2.95V~ 5.5V | |
| I2C(SMBUS/PMBUS) | 1 |
From components to fully assembled PCBs. JLCPCB supports PCB assembly for the STM8S103F3U6. Sign up to receive and start your assembly today →
Step 1 - Pre-order the parts you need from JLCPCB.
Step 2 - Place a PCBA order to have those parts assembled onto your boards.
Step 3 - JLCPCB manufactures and assembles your boards in as fast as 3 days.

STM8S103F3U6 datasheets or manufacturer documentation.
The STM8S103F3U6 schematic symbol and PCB footprint are available in the EasyEDA PCB design tool.