Description
The STM8S103/105 access line 8-bit microcontrollers offer from 8 Kbytes up to 32 Kbytes of program memory.
All devices of the STM8S103/105 access line provide the following benefits:
● Reduced system cost
– High system integration level with internal clock oscillators, watchdog and brown out reset
● Performance and robustness
– 16 MHz CPU clock frequency
– Robust I/O, independent watchdogs with separate clock source
– Clock security system
● Short development cycles
– Applications scalability across a common family product architecture with compatible pinout, memory map and and modular peripherals.
– Full documentation and a wide choice of development tools
● Product longevity
– Advanced core and peripherals made in a state-of-the art technology
– A family of products for applications with 3.0 V to 5.5 V operating supply

FEATUREs
Core
■ Max fCPU: up to 16 MHz
■ Advanced STM8 core with Harvard architecture and 3-stage pipeline
■ Extended instruction set

Memories
■ Program memory: Up to 32 Kbytes Flash; data retention 20 years at 85°C after 1 kcycles
■ RAM: Up to 2 Kbytes

Clock, reset and supply management
■ 3.0 to 5.5 V operating voltage
■ Flexible clock control, 4 master clock sources:
– Low power crystal resonator oscillator
– External clock input
– Internal 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, dead-time insertion and flexible synchronization
■ 8-bit basic timer with 8-bit prescaler
■ Auto wake-up timer
■ 2 watchdog timers: Window watchdog and independent watchdog

Communications interfaces
■ USART or LINUART with clock output for synchronous operation, smartcard mode, IrDA mode, LIN master mode
■ SPI synchronous serial 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 9 high sink outputs
■ Highly robust I/O design, immune against current injection