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ST62T52C Datasheet(PDF) 5 Page - STMicroelectronics

Part No. ST62T52C
Description  8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER AND EEPROM
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST62T52C ST62T62C/E62C
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST62T52C and ST62T62C devices is low cost
members of the ST62xx 8-bit HCMOS family of mi-
crocontrollers, which is targeted at low to medium
complexity applications. All ST62xx devices are
based on a building block approach: a common
core is surrounded by a number of on-chip periph-
erals.
The ST62E62C is the erasable EPROM version of
the ST62T62C device, which may be used to em-
ulate the ST62T52C and ST62T62C devices as
well as the ST6252C and ST6262B 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 byte 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 Auto-Reload Timer,
EEPROM data capability (except ST62T52C), an
8-bit A/D Converter with 4 analog inputs and a Dig-
ital Watchdog timer, making them well suited for a
wide range of automotive, appliance and industrial
applications.
Figure 1. Block Diagram
TEST
NMI
INTERRUPT
PROGRAM
PC
STACK LEVEL 1
STACK LEVEL 2
STACK LEVEL 3
STACK LEVEL 4
STACK LEVEL 5
STACK LEVEL 6
POWER
SUPP LY
OSCILLATOR
RESET
DATA ROM
USER
SELECTABLE
DATA RAM
PORT A
PORT B
TIMER
DIGITAL
8 BIT CORE
TEST/VPP
8-BIT
A/D CONVERTER
PA4..PA 5 / Ain
PB0, PB2..PB3 / 30 mA Sink
VDD VSS OSCin OSCout
RESET
WATCHD OG
MEMORY
PB6 / ARTimin / 20 mA Sink
PORT C
PC2..PC3 / Ain
AUTORELOAD
TIMER
PB7 / ARTimout / 20 mA Sink
128 Bytes
1836 byte s OTP
(ST62T52C, T62C)
1836 byte s EPROM
(ST62E62C)
DATA EEPROM
64 Bytes
(ST62T62C/E6 2C)
4




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