ST6208CB3 datasheet(4/70 Pages) STMICROELECTRONICS

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ST62T08C/T09C ST62T10C/T20C/E20C

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST62T08C,T09C,T10C,T20C and ST62E20C

devices are low cost members of the ST62xx 8-bit

HCMOS family of microcontrollers, which is target-

ed at low to medium complexity applications. All

ST62xx devices are based on a building block ap-

proach: a common core is surrounded by a

number of on-chip peripherals.

The ST62E20C is the erasable EPROM version of

the ST62T08C,T09C,T10C and T20C device,

which

may

used

emulate

the

ST62T08C,T09C,T10C and T20C device, as well

as the respective ST6208C,09C,10C,20C 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-

fined in the programmable option bytes of the

OTP/EPROM versions.

OTP devices offer all the advantages of user pro-

grammability at low cost, which make them the

ideal choice in a wide range of applications 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 A/D Converter with up to

8 analog inputs and a Digital Watchdog timer,

making them well suited for a wide range of auto-

motive, appliance and industrial applications.

Figure 1. Block Diagram

TEST

NMI

INTERRUPT

PROGRAM

1836 Bytes

STACK LEVEL 1

STACK LEVEL 2

STACK LEVEL 3

STACK LEVEL 4

STACK LEVEL 5

STACK LEVEL 6

POWER

SUPPLY

OSCILLATOR

RESET

DATA ROM

USER

SELECTABLE

DATA RAM

64 Bytes

PORT A

PORT B

TIMER

DIGITAL

8 BIT CORE

TEST/VPP

3884 Bytes

(ST62T10C)

(ST62T20C, E20C)

8-BIT

A/D CONVERTER

PA0..PA3 (20mA Sink)

TIMER

VDD VSS OSCin OSCout

RESET

WATCHDOG

MEMORY

PB0..PB7 / Ain (*)

1036 Bytes

(ST62T08C,T09C)

(*) Analog input availability depend on versions

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