Description

The STM8S20xxx performance line 8-bit microcontrollers offer from 32 to 128 Kbytes Flash program memory. They are referred to as high-density devices in the STM8S microcontroller family reference manual.

Features

■ Core
– Max fCPU: up to 24 MHz, 0 wait states @
fCPU ≤ 16 MHz
– Advanced STM8 core with Harvard
architecture and 3-stage pipeline
– Extended instruction set
– Max 20 MIPS @ 24 MHz
■ Memories
– Program: up to 128 Kbytes Flash; data
retention 20 years at 55 °C after 10 kcycles
– Data: up to 2 Kbytes true data EEPROM;
endurance 300 kcycles
– RAM: up to 6 Kbytes
■ Clock, reset and supply management
– 2.95 to 5.5 V operating voltage
– 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
– Wait, active-halt, & halt low power modes
– Peripheral clocks switched off 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 wakeup timer
– Window watchdog, independent watchdog
■ Communications interfaces
– High speed 1 Mbit/s active beCAN 2.0B
– UART with clock output for synchronous
operation - LIN master mode
– UART with LIN 2.1 compliant, master/slave
modes and automatic resynchronization
– SPI interface up to 10 Mbit/s
– I2C interface up to 400 Kbit/s
■ 10-bit ADC with up to 16 channels
■ I/Os
– Up to 68 I/Os on an 80-pin package
including 18 high sink outputs
– Highly robust I/O design, immune against
current injection
– Development support
– Single wire interface module (SWIM) and
debug module (DM)
■ 96-bit unique ID key for each device