The STM8S903K3U3TR is an 8-bit microcontroller from STmicroelectronics. It features an 8KB FLASH memory and 1KB RAM. The device operates at a maximum frequency of 16MHz and supports I2C, SPI, and UART interfaces. It has 28 programmable I/Os and 9 timers/counters. The microcontroller has a watchdog timer and operates over a temperature range of -40°C to 125°C, with a maximum power dissipation of 132mW.
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Stmicroelectronics STMSTM8S903K3U3TR technical specifications.
| Data Bus Width | 8b |
| Interface | I2C, SPI, UART |
| Max Frequency | 16MHz |
| Max Operating Temperature | 125°C |
| Max Power Dissipation | 132mW |
| Memory Size | 8KB |
| Memory Type | FLASH |
| Min Operating Temperature | -40°C |
| Number of Programmable I/O | 28 |
| Number of Timers/Counters | 9 |
| RAM Size | 1KB |
| Watchdog Timer | Yes |
| RoHS | Compliant |
