16 MHz 8-bit core with automotive-grade peripherals
It runs at 16 MHz and packs 4 KB of Flash program memory, 1K x 8 of SRAM, and 640 x 8 of EEPROM — enough for small sensor interfaces, LIN-bus nodes, or local actuator control in under-hood or cabin environments. The wide supply range (3V to 5.5V) lets it sit on an unregulated battery rail or a 5V regulated bus without a separate LDO.
Peripheral set for body and powertrain applications
Connectivity covers I²C, LINbus, SPI, and UART/USART, so it can talk to a CAN transceiver, a sensor hub, or a diagnostic tool. Five 10-bit ADC channels handle analog inputs like temperature or pressure sensors.
NRND — plan the transition
The 20-TSSOP footprint is common across several STM8A density variants, so a pin-compatible upgrade with more Flash or RAM may be available — verify the exact memory and peripheral map against your firmware image.