STMicroelectronics STM8S STM8S903K3T6CTR 8-Bit MCU, 16MHz, 8KB Flash, 1K x 8 RAM, 640 x 8 EEPROM, 28 I/O, I²C/SPI/UART/LIN, 2.95V-5.5V, -40°C~85°C, 32-LQFP.
| 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 | Tape & Reel (TR) Cut Tape (CT) |
| 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 STM8S903K3T6CTR is an 8-bit microcontroller from ST's STM8S series, built around the STM8 core running at 16 MHz.
ST lists the STM8S903K3T6CTR as Active. That means no EOL notice is in force, and the part remains available through authorized distribution. For a production BOM this removes the single-source worry that haunts NRND or phase-out parts.
It is not a pin-compatible or functional second source for the 8-bit STM8S903K3T6CTR.