ST72C124J2集成电路（IC）的微控制器规格书PDF中文资料

ST72C124J2属于集成电路（IC）的微控制器。由意法半导体集团制造生产的ST72C124J2微控制器微控制器产品是相对复杂的用户可编程数字逻辑器件。这些产品与视为微控制器的器件密切相关，两者之间的区别主要体现在制造商选择的用词。不过按照传统，微控制器集成了工作存储器，也更可能包含混合信号外设，并且往往与更简单的软件范例结合使用，旨在重复执行一系列预定义的任务。

INTRODUCTION

The ST72334J/N-Auto, ST72314J/N-Auto and ST72124J-Auto devices are members of the ST7 microcontroller family. They can be grouped as follows:

– ST72334J/N-Auto devices are designed for mid range applications with Data EEPROM, ADC, SPI and SCI interface capabilities.

– ST72314J/N-Auto devices target the same range of applications but without Data EEPROM.

– ST72124J-Auto devices are for applications that do not need Data EEPROM and the ADC peripheral.

All devices are based on a common industry standard 8-bit core, featuring an enhanced instruction set.

The ST72C334J/N-Auto, ST72C314J/N-Auto and ST72C124J-Auto versions feature single-voltage Flash memory with byte-by-byte In-Situ Programming (ISP) capability.

■ Memories

– 8 or 16 Kbyte Program memory (ROM or single voltage Flash) with readout protection and in-situ programming (remote ISP)

– 256 bytes EEPROM Data memory (with read out protection option in ROM devices)

– 384 or 512 bytes RAM

■ Clock, Reset and Supply Management

– Enhanced reset system

– Enhanced low voltage supply supervisor with 3 programmable levels

– Clock sources: crystal/ceramic resonator oscillators or RC oscillators, external clock, backup Clock Security System

– 4 Power Saving Modes: Halt, Active Halt, Wait and Slow

– Beep and clock-out capabilities

■ Interrupt Management

– 10 interrupt vectors plus TRAP and RESET

– 15 external interrupt lines (4 vectors)

■ 44 or 32 I/O Ports

– 44 or 32 multifunctional bidirectional I/O lines:

– 21 or 19 alternate function lines

– 12 or 8 high sink outputs

■ 4 Timers

– Configurable watchdog timer

– Real-time base

– Two 16-bit timers with: 2 input captures (only one on timer A), 2 output compares (only one on timer A), External clock input on timer A, PWM and Pulse generator modes

■ 2 Communications Interfaces

– SPI synchronous serial interface

– SCI asynchronous serial interface (LIN compatible)

■ 1 Analog Peripheral

– 8-bit ADC with 8 input channels (6 only on ST72334Jx, not available on ST72124J2)

■ Instruction Set

– 8-bit data manipulation

– 63 basic instructions

– 17 main addressing modes

– 8 x 8 unsigned multiply instruction

– True bit manipulation

■ Development Tools

– Full hardware/software development package