●The STM8S903K3/F3 access line 8-bit microcontrollers offer 8 Kbyte Flash program memory, plus integrated true data EEPROM. The STM8S microcontroller family reference manual (RM0016) refers to devices in this family as low-density. They provide the following benefits: performance, robustness, and reduced system cost.
●Device performance and robustness are ensured by advanced core and peripherals made in a state-of-the art technology, a 16 MHz clock frequency, robust I/Os, independent watchdogs with separate clock source, and a clock security system.
●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, watchdog and brown-out reset.
●Full documentation is offered as well as a wide choice of development tools.
●Key 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
● 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
● 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
● Internal reference voltage measurement
● 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
