ST62T45B STMicroelectronics, ST62T45B Datasheet - Page 5

• Manufacturer Part Number: ST62T45B
• Description: 8-BIT OTP/EPROM MCU
• Manufacturer: STMicroelectronics

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1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST62T45B and ST62E45B 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
Figure 1. Block Diagram
TEST/V
(VPP on EPROM/OTP versions only)
NMI
PP
POWER
SUPPLY
V
STAC K LEVEL 1
STAC K LEVEL 2
STAC K LEVEL 3
STAC K LEVEL 4
STAC K LEVEL 5
STAC K LEVEL 6
DD
INTERRUPT
PROGRAM
3884 bytes
V
Memory
SS
TEST
PC
OSCin OSCout
OSCILLATOR
A/D CONVERTER
DATA EEPROM
SELECTABLE
8 BIT CORE
DATA ROM
DATA RAM
12 8 Bytes
128 Bytes
USER
8-BIT
RESET
RESET
common core is surrounded by a number of on-
chip peripherals.
The ST62E45B is the erasable EPROM version of
the ST62T45B device, which may be used to em-
ulate the ST62T45B device, as well as the respec-
tive ST6245B ROM devices.
LCD DRIVER
PERIPHERAL
WATC HDOG
SPI (SERIAL
INTERFACE)
OSC 32kHz
PORT B
DIGITA L
PORT A
TIMER 1
PORT C
TIMER 2
VLCD
VLCD1/3
VLCD2/3
OSC32in
OSC32out
TIMER
PC0..PC7/S33..S40
PA5..PA7/Ain
PB0..PB3/Ain
PB4/20mA Sink
PB5/Scl/20mA Sink
PB6/Sin/20mA Sink
PB7/Sout/20mA Sink
S17..S32
COM1..COM4
ST62T45B/E45B
VR01994
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