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ST6285B(1999) View Datasheet(PDF) - STMicroelectronics

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ST6285B Datasheet PDF : 76 Pages
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ST62T85B/E85B
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST62T85B and ST62E85B devices are low
cost members of the ST62xx 8-bit HCMOS family
of microcontrollers, which is targeted at low to me-
dium complexity applications. All ST62xx devices
are based on a building block approach: a com-
Figure 1. Block Diagram
mon core is surrounded by a number of on-chip
peripherals.
The ST62E85B is the erasable EPROM version of
the ST62T85B device, which may be used to em-
ulate the ST62T85B device, as well as the respec-
tive ST6285B ROM devices.
TE ST/VPP
NMI
TEST
8-BIT
A/D CONVERTER
INTERRUPT
PROGR AM
Memory
7948 bytes
DATA ROM
USE R
SELECTABLE
DATA RAM
192 Bytes
DATA EEPROM
128 Bytes
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
SUPP LY
VDD VSS OSCin OSCout RESET
(VPP on EPROM/OTP versions only)
PORT A
PORT B
ARTIMER
UART
PORT C
LCD DRIVER
PA4 / TIMER / 20mA Sink
PA5 / Scl / 20mA Sink
PA6 / Sin / 20mA Sink
PA7 / Sout / 20mA Sink
PB0 / RXD / Ain
PB1 / TXD / Ain
PB2..PB3 / Ain
PC4..PC7 / Ain
COM1..COM8
S9..S24, S33..S56
COM9..COM16 / S1..S8
VLCD
VLCD1/5
VLCD2/5
VLCD3/5
VLCD4/5
TIMER
DIGITAL
W ATCHDOG
SPI (SERIAL
PERI PHERAL
INTE RFACE)
VA0479
5/76
5
 

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