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ST公司的8位STM8S207/208系列MCU有32位存储器接口和三级流水线,在24MHz时可达到20MOPS的性能. STM8S把内核的高速高性能和有多种外设的代码效率组合在一起,同是集成了真正的EEPROM,从而简化了仿真,降低了系统成本和开发时间,增加了工业应用和家用电器的性能.本文介绍了STM8S207/208系列MCU的主要性能.

The STM8S207/208 performance line 8-bit microcontrollers offer from 32 Kbytes up to 128 Kbytes of PROGRAM MEMORY and INTEGRATED true data EEPROM.

All DEVICES of the STM8S207/208 performance line provide the following benefits:

●Reduced SYSTEM cost

ntegrated true data EEPROM for up to 300 k write/erase cycles

High system integration level with internal clock oscillators, watchdog and brownout reset

●Performance and robustness

20 MIPS at 24 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 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

STM8S207/208主要特性:

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 memory: Up to 128 Kbytes Flash; data retention 20 years at 85°C after 10 kcycles

■Data memory: Up to 2 Kbytes true data EEPROM; endurance 300 kcycles

■RAM: Up to 6 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, 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 inpidually

■Permanently active, low consumption poweron 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

■Window watchdog and independent watchdog

Communications interfaces

■High speed 1 Mbit/s active CAN 2.0B interface

■USART with clock output for synchronous operation - LIN master mode

■LINUART LIN 2.1 compliant, master/slave modes with automatic resynchronization

■SPI interface up to 10 Mbit/s

■I2C interface up to 400 Kbit/s

ANALOG to DIGITAL CONVERTER (ADC)

■10-bit, ±1 LSB ADC with up to 16 channels

I/Os

■Up to 68 I/Os on an 80-pin PACKAGE including

11 high sink outputs

■Highly robust I/O design, immune against current injection

■Development SUPPORT

HARDWARE SINGLE Wire Interface MODULE (SWIM) for fast on-chip PROGRAMMING and non intrusive debugging

On-chip Debug Module (DM)

The device can be supplied through a 3.0 V to 5.5 V external source. An on-chip power

management system provides the 1.8 V digital supply to the core logic, both in normal and

low power modes. It is also capable of detecting voltage drops, on both main external (3.3

V/5 V) and internal (1.8 V) supplies.