What this 8-bit MCU brings to a control board
Memory and peripheral budget for a BOM line
With 16 KB of Flash and 2 KB of RAM, this MCU fits firmware footprints for sensor polling, relay logic, and simple communication stacks. The 1 KB EEPROM handles calibration constants and configuration data without needing an external serial EEPROM. On the peripheral side, you get I²C, SPI, UART/USART, LIN, and IrDA — enough to talk to common sensors, actuators, and display modules. The 34 general-purpose I/O pins in the 44-LQFP package give headroom for parallel interfaces or matrix keypads.