ST6228CM3 查看數據表（PDF） - STMicroelectronics

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ST6228CM3

8-BIT MCUs WITH A/D CONVERTER, AUTO-RELOAD TIMER, UART, OSG, SAFE RESET AND 28-PIN PACKAGE

STMicroelectronics 

ST62T28C/E28C

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST62T28C and ST62E28C devices are low

cost members of the ST62xx 8-bit HCMOS family

of microcontrollers, which are targeted at low to

medium complexity applications. All ST62xx de-

vices are based on a building block approach: a

common core is surrounded by a number of on-

chip peripherals.

The ST62E28C is the erasable EPROM version of

the ST62T28C device, which may be used to em-

ulate the ST62T28C device, as well as the respec-

tive ST6228C ROM devices.

OTP and EPROM devices are functionally identi-

cal. The ROM based versions offer the same func-

tionality selecting as ROM options the options de-

Figure 1. Block Diagram

fined in the programmable option byte of the OTP/

EPROM versions.OTP devices offer all the advan-

tages of user programmability at low cost, which

make them the ideal choice in a wide range of ap-

plications where frequent code changes, multiple

code versions or last minute programmability are

required.

These compact low-cost devices feature a Timer

comprising an 8-bit counter and a 7-bit program-

mable prescaler, an 8-bit Auto-Reload Timer, with

1 input capture channel, capability, a serial asyn-

chronous port interface (UART), a synchronous

serial port interface, an 8-bit A/D Converter with 12

analog inputs and a Digital Watchdog timer, mak-

ing them well suited for a wide range of automo-

TEST/VPP

NMI

TEST

8-BIT

A/D CONVERTER

INTERRUPT

PROGRAM

Memory

7948 bytes

DATA ROM

USER

SELECTABLE

DATA RAM

192 Bytes

PORT A

PORT B

PORT C

PORT D

UART

PA0..PA1 / 20 mA Sink

PA2/ARTIMout / 20 mA Sink

PA3/ARTIMin/ 20 mA Sink

PA4..PA5/20 mA Sink

PB4..PB6/Ain

PC4..PC5/Ain

PC6..PC7/20 mA Sink

PD1/Ain/Scl

PD2/Ain/Sin

PD3/Ain/Sout

PD4/Ain/RXD1

PD5/Ain/TXD1

PD6,PD7/Ain

PC

STACK LEVEL 1

STACK LEVEL 2

STACK LEVEL 3

STACK LEVEL 4

STACK LEVEL 5

STACK LEVEL 6

8 BIT CORE

POWER OSCILLATOR RESET

SUPPLY

AUTORELOAD

TIMER

TIMER

SPI

DIGITAL

WATCHDOG

VDD VSS OSCin OSCout RESET

(VPP on EPROM/OTP versions only)

TIMER

VR01823F

5/84

5

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