ST6246 STMICROELECTRONICS [STMicroelectronics], ST6246 Datasheet - Page 5

• Manufacturer Part Number: ST6246
• Description: 8-BIT OTP/EPROM MCU WITH LCD DRIVER, EEPROM AND A/D CONVERTER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST62T46B and ST62E46B 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
(V
NMI
PP
on EPROM/OTP versions only)
PP
POWER
SUPPLY
V
STACK LEVEL 1
STACK LEVEL 2
STACK LEVEL 3
STACK LEVEL 4
STACK LEVEL 5
STACK LEVEL 6
DD
INTERRUP T
PROGRAM
3884 bytes
Memory
V
SS
TEST
PC
OSCin OSCout
OSCILLATOR
A/D CONVERTE R
DATA EEPROM
SELECTA BLE
8 BIT CORE
DATA ROM
DATA RAM
128 Bytes
128 Bytes
USER
8-BIT
RESET
RESET
common core is surrounded by a number of on-
chip peripherals.
The ST62E46B is the erasable EPROM version of
the ST62T46B device, which may be used to em-
ulate the ST62T46B device, as well as the respec-
tive ST6246B ROM devices.
POWER SUPPLY
SUPERVISOR
LCD DRIVER
PERIPHERAL
SPI (SERIAL
INTERFAC E)
WATCHDOG
OSC 32kHz
PORT B
DIGITAL
TIMER 1
PORT A
TIMER 2
PORT C
VLCD
VLCD1/3
VLCD2/3
OSC32in
OSC32out
PSS
PC0..PC7/S33..S40
PA4..PA7/A in
PB0..PB3/A in
PB4/20mA Sink
PB5/Scl/ 20mA Sink
PB6/Sin/20mA Sink
PB7/Sout/20mA Sink
S9..S16, S25..S32, S41..S43
COM1..COM4
ST62T46B/E46B
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