STM8S903K3 Datasheet, PDF (1/121 Pages) STMicroelectronics – 16 MHz STM8S 8-bit MCU, up to 8 Kbytes Flash, 1 Kbyte RAM, 640 bytes EEPROM,10-bit ADC, 2 timers, UART, SPI, IC

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 Kbytes Flash; data
retention 20 years at 55 °C after 10 kcycles
 Data memory: 640 bytes true data EEPROM;
endurance 300 kcycles
 RAM: 1 Kbytes
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
 Clock security system with clock monitor
 Power management:
– Low-power modes (wait, active-halt, halt)
– Switch-off peripheral clocks individually
 Permanently active, low consumption power-
on and power-down reset
Interrupt management
 Nested interrupt controller with 32 interrupts
 Up to 28 external interrupts on 7 vectors
Timers
 Advanced control timer: 16-bit, 4 CAPCOM
channels, 3 complementary outputs, dead-time
insertion and flexible synchronization
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 16-bit general purpose timer, with 3 CAPCOM
channels (IC, OC or PWM)
 8-bit basic timer with 8-bit prescaler
 Auto wake-up timer
 Window watchdog and independent watchdog
timers
Communication interfaces
 UART with clock output for synchronous
operation, SmartCard, IrDA, LIN master mode
 SPI interface up to 8 Mbit/s
 I2C interface up to 400 kbit/s
Analog to digital converter (ADC)
 10-bit, ±1 LSB ADC with up to 7 multiplexed
channels + 1 internal channel, scan mode and
analog watchdog
I/Os
 Up to 28 I/Os on a 32-pin package including 21
high sink outputs
 Highly robust I/O design, immune against
current injection
Unique ID
 96-bit unique key for each device
March 2015
This is information on a product in full production.
DocID15590 Rev 10
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