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ST62E62B 데이터시트 PDF




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부품번호 ST62E62B 기능
기능 (ST6252B / ST6262B) 8-BIT OTP/EPROM MCUs
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ST62E62B 데이터시트, 핀배열, 회로
ST62T52B
R ST62T62B/E62B
8-BIT OTP/EPROM MCUs WITH
A/D CONVERTER, AUTO-RELOAD TIMER AND EEPROM
s 3.0 to 6.0V Supply Operating Range
s 8 MHz Maximum Clock Frequency
s -40 to +125°C Operating Temperature Range
s Run, Wait and Stop Modes
s 5 Interrupt Vectors
s Look-up Table capability in Program Memory
s Data Storage in Program Memory:
User selectable size
s Data RAM: 128 bytes
s Data EEPROM: 64 bytes (none on ST62T52B)
s User Programmable Options
s 9 I/O pins, fully programmable as:
– Input with pull-up resistor
– Input without pull-up resistor
– Input with interrupt generation
– Open-drain or push-pull output
– Analog Input
s 5 I/O lines can sink up to 20mA to drive LEDs or
TRIACs directly
s 8-bit Timer/Counter with 7-bit programmable
prescaler
s 8-bit Auto-reload Timer with 7-bit programmable
prescaler (AR Timer)
s Digital Watchdog
s 8-bit A/D Converter with 4 analog inputs
s On-chip Clock oscillator can be driven by Quartz
Crystal Ceramic resonator or RC network
s User configurable Power-on Reset
s One external Non-Maskable Interrupt
s ST626x-EMU2 Emulation and Development
System (connects to an MS-DOS PC via a
parallel port)
DEVICE SUMMARY
DEVICE
ST62T52B
ST62T62B
ST62E62B
EPROM
(Bytes)
1836
OTP
(Bytes)
1836
1836
EEPROM
-
64
64
PDIP16
PSO16
CDIP16W
(See end of Datasheet for Ordering Information)
Rev. 2.4
April 1998
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1




ST62E62B pdf, 반도체, 판매, 대치품
ST62T52B ST62T62B/E62B
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST62T52B and ST62T62B devices is low cost
members of the ST62xx 8-bit HCMOS family of
microcontrollers, which is targeted at low to medi-
um complexity applications. All ST62xx devices
are based on a building block approach: a com-
mon core is surrounded by a number of on-chip
peripherals.
The ST62E62B is the erasable EPROM version of
the ST62T62B device, which may be used to em-
ulate the ST62T52B and ST62T62B devices as
well as the ST6252B 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-
Figure 1. Block Diagram
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 ST62T52B), an
8-bit A/D Converter with 4 analog inputs and a
Digital Watchdog timer, making them well suited
for a wide range of automotive, appliance and in-
dustrial applications.
TEST/VPP
NMI
TEST
8-BIT
A/D CONVERTER
INTERRUPT
PROGRAM
MEMORY
1836 bytes OTP
(ST62T52B, T62B)
1836 bytes EPROM
(ST62E62B)
DATA ROM
USER
SELECTABLE
DATA RAM
128 Bytes
DATA EEPROM
64 Bytes
(ST62T62B/E62B)
PC
STACK LEVEL 1
STACK LEVEL 2
STACK LEVEL 3
STACK LEVEL 4
STACK LEVEL 5
STACK LEVEL 6
8 BIT CORE
POWER
SUPPLY
OSCILLATOR
RESET
VDD VSS OSCin OSCout RESET
PORT A
PORT B
PORT C
AUTORELOAD
TIMER
TIMER
PA4..PA5 / Ain
PB0, PB2..PB3 / 20 mA Sink
PB6 / ARTimin / 20 mA Sink
PB7 / ARTimout / 20 mA Sink
PC2..PC3 / Ain
DIGITAL
WATCHDOG
4/68
4

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ST62E62B 전자부품, 판매, 대치품
ST62T52B ST62T62B/E62B
MEMORY MAP (Cont’d)
1.3.2 Program Space
Program Space comprises the instructions to be
executed, the data required for immediate ad-
dressing mode instructions, the reserved factory
test area and the user vectors. Program Space is
addressed via the 12-bit Program Counter register
(PC register).
1.3.2.1 Program Memory Protection
The Program Memory in OTP or EPROM devices
can be protected against external readout of
memory by selecting the READOUT PROTEC-
TION option in the option byte.
In the EPROM parts, READOUT PROTECTION
option can be disactivated only by U.V. erasure
that also results into the whole EPROM context
erasure.
Note: Once the Readout Protection is activated, it
is no longer possible, even for SGS-THOMSON,
to gain access to the OTP contents. Returned
parts with a protection set can therefore not be ac-
cepted.
Figure 4. ST62T52B/T62B Program
Memory Map
0000h
RESERVED*
087Fh
0880h
USER
PROGRAM MEMORY
1836 BYTES
(OTP/EPROM)
0F9Fh
0FA0h
0FEFh
0FF0h
0FF7h
0FF8h
0FFBh
0FFCh
0FFDh
0FFEh
0FFFh
RESERVED*
INTERRUPT VECTORS
RESERVED
NMI VECTOR
USER RESET VECTOR
(*) Reserved areas should be filled with 0FFh
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