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PDF M27C452CZ Data sheet ( Hoja de datos )
| Número de pieza | M27C452CZ | |
| Descripción | MSM27C452CZ | |
| Fabricantes | OKI | |
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¡ Semiconductorwww.DataSheet4U.com
MSM27C452CZ
262,144-Word x 16-Bit or 524,288-Word x 8-Bit
8-Word x 16-Bit or 16-Word x 8-Bit Page Mode One Time PROM
1A
DESCRIPTION
The MSM27C452CZ is a 4Mbit electrically Programmable Read-Only Memory with page mode. Its
configuration can be electrically switched between 262,144 word x 16bit and 524,288 word x 8bit.
The MSM27C452CZ operates on a single +5V power supply and is TTL compatible. The MSM27C4
52CZ provides Page mode which can greatly reduce the read access time. Since the MSM27C452
CZ operates asynchronously , external clocks are not required , making this device easy-to-use. The
MSM27C452CZ is suitable as large-capacity fixed memory for microcomputers and data terminals. It
is manufactured using a CMOS double silicon gate technology and is offered in 40-pin DIP , 40-pin
SOP or 44-pin TSOP packages.
FEATURES
• 262,144 word x 16bit / 524,288 word x 8bit electrically switchable configuration
• Single +5V power supply
• Access time 80ns
Page mode access time 50ns
• Input / Output TTL compatible
• Three-state output
• Packages
40-pin plastic DIP (DIP40-P-600-2.54)
40-pin plastic SOP (SOP40-P-525-1.27-K)
44-pin plastic TSOP (TSOP II 44-P-400-0.80-K)
1
1 page  
www.DaMtaSSMh2e7eCt44U52.cCoZm
ELECTRICAL CHARACTERISTICS (Read operation)
DC Characteristics
Parameter
Input leakage current
Output leakage current
VCC power supply current
(Standby)
VCC power supply current
(Read)
VPP power supply current
Input "H" level
Input "L" level
Output "H" level
Output "L" level
Voltage is relative to Vss
Symbol
ILI
ILO
ICS1
ICS2
ICCA
IPP
VIH
VIL
VOH
VOL
Condition
VI=0 to Vcc
VO=0 to Vcc
CE=VCC
CE=VIH
CE=VIL , OE=VIH
tc=80ns
VPP=VCC
-
-
IOH=-400µA
IOL=2.1mA
(VCC=5V±0.5V, Ta=0 to 70°C)
Min. Typ. Max. Unit
- - 10 µA
- - 10 µA
- - 50 µA
- - 1 mA
- - 100 mA
- - 50 µA
2.2 - VCC+0.5 V
-0.5 - 0.8 V
2.4 - - V
- - 0.45 V
AC Characteristics
(VCC=5V±0.5V, Ta=0 to 70°C)
Parameter
Symbol
Condition
Min. Max. Unit
Random access cycle time
Address access time
Page set up time
Page access cycle time
Page access time
CE access time
OE access time
Output disable time
Output hold time
TC
TACC
TPSET
TPC
TPAC
TCE
TOE
TCHZ
TOHZ
TOH
-
CE=OE=VIL
NOTE(1)
-
-
OE=VIL
CE=VIL
OE=VIL
CE=VIL
CE=OE=VIL
80 - ns
- 80 ns
100 - ns
50 - ns
- 50 ns
- 100 ns
- 50 ns
0 40 ns
0 35 ns
0 - ns
NOTE(1) TPSET is defined as the end of either CE trailing edge or address transition in random access
term until the first page address transition.
Measurement conditions
Input signal level
Input timing reference level
Output load
Output timing reference level
0V/3V
0.8V/2.0V
1TTL gate + 100pF
0.8V/2.0V
1.7V
Output
400
100pF (including jig capacitance)
5
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NOTICE
The information contained herein can change without notice owing to product and/or technical im-
provements. Before using the product, please make sure that the information being referred to is up-to-
date.
The outline of action and examples for application circuits described herein have been chosen as an
explanation for the standard action and performance of the product. When planning to use the product,
please ensure that the external conditions are reflected in the actual circuit, assembly, and program
designs.
When designing your product, please use our product below the specified maximum ratings and within
the specified operating ranges including, but not limited to, operating voltage, power dissipation, and
operating temperature.
Oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected opera-
tion resulting from misuse, neglect, improper installation, repair, alteration or accident, improper han-
dling, or unusual physical or electrical stress including, but not limited to, exposure to parameters be-
yond the specified maximum ratings or operation outside the specified operating range.
Neither indemnity against nor license of a third party’s industrial and intellectual property right, etc. is
granted by us in connection with the use of the product and/or the information and drawings contained
herein. No responsibility is assumed by us for any infringement of a third party’s right which may result
from the use thereof.
The products listed in this document are intended for use in general electronics equipment for commer-
cial applications (e.g., office automation, communication equipment, measurement equipment, consumer
electronics, etc.). These products are not authorized for use in any system orapplication that requires
special or enhanced quality and reliability characteristics nor in any system or application where the
failure of such system or application may result in the loss or damage of property, or death or injury to
humans. Such applications include, but are not limited to, traffic and automotive equipment, safety de-
vices, aerospace equipment, nuclear power control, medical equipment, and life-support systems.
Certain products in this document may need government approval before they can be exported to par-
ticular countries. The purchaser assumes the responsibility of determining the legality of export of these
products and will take appropriate and necessary steps at their own expense for these.
No part of the contents cotained herein may be reprinted or reproduced without our prior permission.
All brand, company and product names are the trademarks or registered trademarks of their respective
owners.
Copyright 1998 Oki Electric Industry Co., Ltd.
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