The STM8AF526x/8x/Ax and STM8AF6269/8x/Ax automotive 8-bit microcontrollers described in this datasheet offer from 32 Kbyte to 128 Kbyte of non volatile memory and integrated true data EEPROM. They are referred to as high density STM8A devices in STM8S series and STM8AF series 8-bit microcontrollers reference manual (RM0016).The STM8AF52 series features a CAN interface.All devices of the STM8A product line provide the following benefits: reduced system cost, performance and robustness, short development cycles, and product longevity.The system cost is reduced thanks to an integrated true data EEPROM for up to 300 k write/erase cycles and a high system integration level with internal clock oscillators, wtachdog, and brown-out reset.Device performance is ensured by 20 MIPS at 24 MHz CPU clock frequency and enhanced characteristics which include robust I/O, independent watchdogs (with a separate clock source), and a clock security system.CoreMax fCPU: 24 MHzAdvanced STM8A core with Harvard architecture and 3-stage pipelineAverage 1.6 cycles/instruction resulting in 10 MIPS at 16 MHz fCPUfor industry standard benchmarkMemoriesProgram memory: 32 to 128 Kbyte Flash program; data retention 20 years at 55 °CData memory: up to 2 Kbyte true data EEPROM; endurance 300 kcycleRAM: 6 KbyteClock managementLow-power crystal resonator oscillator with external clock inputInternal, user-trimmable 16 MHz RC and low-power 128 kHz RC oscillatorsClock security system with clock monitorReset and supply managementWait/auto-wakeup/Halt low-power modes with user definable clock gatingLow consumption power-on and power-down resetInterrupt managementNested interrupt controller with 32 vectorsUp to 37 external interrupts on 5 vectorsTimers2 gene