ST has flagged the STM8AF6269TCX as Not Recommended for New Design (NRND). That means it remains available for existing production runs, but new projects should not select it.
Automotive-grade 8-bit core with 24 MHz throughput
The STM8AF6269TCX is an 8-bit MCU from ST's automotive STM8A family, qualified to AEC-Q100. The 24 MHz core speed is enough for real-time body-control loops — window lift, wiper control, seat adjustment — where deterministic interrupt response matters more than raw MIPS. The 52 I/O pins in a 64-LQFP package give enough headroom for multiplexed switch inputs and LED drive outputs without an external expander. The internal oscillator trims to within 1% accuracy across temperature, saving a crystal on cost-sensitive boards.
32 KB Flash, 6 KB RAM, 1 KB EEPROM — memory sizing for body electronics
The 32 KB program Flash is adequate for a LIN-node application with a bootloader, calibration tables, and the main control loop. 6 KB RAM supports moderate data buffering for UART or SPI transactions. The 1 KB EEPROM emulated in Flash (or dedicated, depending on the variant) stores calibration constants and fault codes without external serial memory.
Peripherals and connectivity for automotive networks
On-chip LINbus and I²C cover the two most common automotive body-network protocols. The 16-channel 10-bit ADC reads analog sensors — throttle position, temperature, potentiometer feedback — without an external converter. Brown-out reset and POR are integrated, so the MCU starts reliably on a rising supply rail.