8-bit microcontroller (MCU) featuring 8KB Flash memory and 1KB RAM, operating at a 16MHz CPU frequency. This surface mount device supports I2C, SPI, USART, IrDA, and UART interfaces, with 28 I/O pins. It includes 9 timers/counters, integrated EEPROM, and peripherals such as Brown-out Detect/Reset, POR, PWM, and a Watchdog Timer. The MCU operates from 2.95V to 5.5V supply voltage, with a maximum power dissipation of 132mW, and functions across an extended temperature range of -40°C to 125°C.
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Stmicroelectronics STM8S903K3U3TR technical specifications.
| Package/Case | UFQFPN |
| Data Bus Width | 8b |
| Interface | I2C, SPI, USART, IrDA, UART |
| Max Frequency | 16MHz |
| Max Operating Temperature | 125°C |
| Max Power Dissipation | 132mW |
| Max Supply Voltage | 5.5V |
| Memory Size | 8KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Min Supply Voltage | 2.95V |
| Mount | Surface Mount |
| Number of I/Os | 28 |
| Number of Programmable I/O | 28 |
| Number of Timers/Counters | 9 |
| Operating Supply Voltage | 5V |
| Oscillator Type | Internal |
| Packaging | Tape and Reel |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Radiation Hardening | No |
| RAM Size | 1KB |
| RoHS Compliant | Yes |
| Series | STM8S |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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