■ Core
– 16 MHz advanced STM8 core with Harvard architecture and 3-stage pipeline
– Extended instruction set
■ Memories
– Medium-density Flash/EEPROM:
– Program memory up to 32 Kbytes; data retention 20 years at 55°C after 10 kcycles
– Data memory up to 1 Kbytes true data EEPROM; endurance 300 kcycles
– RAM: Up to 2 Kbytes
■ Clock, reset and supply management
– 2.95 V 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 37 external interrupts on 6 vectors
■ Timers
– 2x 16-bit general purpose timers, with 2+3 CAPCOM channels (IC, OC or PWM)
– Advanced control timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, deadtime insertion and flexible synchronization
– 8-bit basic timer with 8-bit prescaler
– Auto wake-up timer
– Two watchdog timers: Window watchdog and independent watchdog
■ Communications interfaces
– UART with clock output for synchronous operation, Smartcard, IrDA, LIN
– 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 10 multiplexed channels, scan mode and analog watchdog
■ I/Os
– Up to 38 I/Os on a 48-pin package including 16 high sink outputs
– Highly robust I/O design, immune against current injection
■ Development support
– Embedded single wire interface module (SWIM) for fast on-chip programming and non intrusive debugging