STM8S903K3 STM8S903F3 16 MHz STM8S 8-bit MCU, up to 8 Kbytes Flash, 1 Kbyte RAM, 640 bytes EEPROM,10-bit ADC, 2 timers, UART, SPI, I²C Datasheet - production data Features Core • 16 MHz advanced STM8 core with Harvard architecture and 3-stage pipeline • Extended instruction set Memories • Program memory: 8 Kbyte Flash; data retention 20 years at 55 °C after 10 kcycle • Data memory: 640 byte true data EEPROM; endurance 300 kcycle • RAM: 1 Kbyte Clock, reset and supply management • 2.
95 to 5.
5 V operating voltage • Flexible clock control, 4 master clock sources – Low power crystal resonator oscillator – External clock input – Internal, user-trimmable 16 MHz RC – Internal low-power 128 kHz RC...

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