MCU 8-bit STM8S STM8 CISC 128KB Flash 3.3V/5V 44-Pin LQFP

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.All STM8S20xxx devices provide the following benefits: reduced system cost, performance robustness, short development cycles, and product longevity.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.Device performance is ensured by 20 MIPS at 24 MHz CPU clock frequency and enhanced characteristics which include robust I/O, independent watchdogs (with a separate clock source), and a clock security system.Short development cycles are guaranteed due to application scalability across a common family product architecture with compatible pinout, memory map and modular peripherals. Full documentation is offered with a wide choice of development tools.Product longevity is ensured in the STM8S family thanks to their advanced core which is made in a state-of-the art technology for applications with 2.95 V to 5.5 V operating supply.

Core

Max f_CPU: up to 24 MHz, 0 wait states @ f_CPU= 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