STMicroelectronics STM8S903K3T6C, STM8S series 8-bit MCU, 16 MHz core, 8 KB Flash, 1K x 8 RAM, 640 x 8 EEPROM, 28 I/O, I²C/SPI/UART/LIN, 32-LQFP, -40°C to 85°C, 2.95 V to 5.5 V.
| Parameter | Value |
|---|---|
| Series | STM8S |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.95V ~ 5.5V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 16MHz |
| Package | Tray |
| RAM size | 1K x 8 |
| Core size | 8-Bit |
| EEPROM size | 640 x 8 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 28 |
| Core processor | STM8 |
| Case | 32-LQFP |
| Data converters | A/D 7x10b |
| Program memory size | 8KB (8K x 8) |
The STMicroelectronics STM8S903K3T6C is an 8-bit microcontroller from the STM8S value-line family, built around the STM8 core running at 16 MHz.
On the peripheral side, the STM8S903K3T6C includes a 7-channel 10-bit ADC, a PWM timer, brown-out detect and power-on reset, and a watchdog timer.
Design engineers need pin assignments and electrical specs to validate fit into a schematic.
Sourcing buyers need real-time inventory and price to place orders and manage BOM cost.
Maintenance techs and buyers must know pin-to-pin compatibility to avoid redesign during repairs or shortages.
Production buyers need lead time to schedule manufacturing and avoid line-down situations.
Engineers check peripheral availability early in design phase; missing interface could break system architecture.
Brokers and long-life buyers need lifecycle status to avoid sourcing components that are being discontinued.