
Semiconductor
MSM534001E
524,288-Word x 8-Bit MASKROM
DESCRIPTION
The OKI MSM534001E is a high-speed silicon gate CMOS Mask ROM with 524,288-word
x 8-bit capacity. The MSM534001E operates on a single 5.0V power supply and is TTL
compatible. The chip's asynchronous I/O requires no external clock assuring easy operation.
A power-down mode provides low power dissipation when the chip is not selected. The CE
and OE pins are provided as control signals that permit three-stated output allowing easy
memory expansion on a system bus. The MSM534001E is suited for use as large capacity
fixed memory for microcomputers and data terminals.
FEATURES
Single 5.0V power supply
524,288-words x 8-bit
Access time
80ns MAX
Input/Output TTL compatible
Tri-State output configurations
Internal powerdown function
Packages:
32-PIN PLASTIC DIP (DIP32-P-600-2.54)
32-PIN PLASTIC SOP (SOP32-P-525-1.27-K)
32-PIN PLASTIC TSOP (TSOP32-P-814-0.50-K)
4MEPROM (32-PIN) pin compatible
1

MSM534001E
BLOCK DIAGRAM
NC
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32PIN DIP,SOP
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
CC
A18
A17
A14
A13
A8
A9
A11
OE
A10
CE
D7
D6
D5
D4
D3
A5 A7 A15 NC A8 A11
A4 A6 A12 A16 V
CC
A14A18
A17 A13 A9
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
TSOP TOP VIEW
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
A3 A1 D0 D2 D3 D5 D7 A10
A2 A0 D1 V
SS
D6 CE OED4
Pin Name Function
A0 to A18 Address input
D0 to D7
CE
OE
V
, V
CC
SS
Data output
Chip enable
Output enable
Power supply
2

BLOCK DIAGRAM
VCCV
SS
MSM534001E
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
Address
Buffer
X
Decoder
Y
Decoder
Memory Cell
Matrix
524,288 x 8
Multiplexer
Output Buffer
D0
D1 D2 D3 D4 D5 D6
D7
CE
OE
Control
CE
OE
3

MSM534001E
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Parameter Symbol
Power Supply Voltage
Input Voltage
Output Voltage
Power Dissipation
Operating Temperature
Storage Temperature
V
CC
V
I
V
O
P
D
T
opr
T
stg
Per Package T
to V
—
—
SS
= 25°C
opr
Recommended Operating Conditions
Parameter Symbol
V
Power Supply Voltage
"H" Input Voltage
"L" Input Voltage
Operating Temperature 700
CC
V
SS
V
IH
V
IL
T
opr
Conditions
—
—
—
—
—
–0.3
–0.3 to 7
–0.3 to V
–0.3 to V
CC
CC
+ 0.5
+ 0.5
1.0
0 to 70
–55 to 150
Rated Value
Min. Max.
4.25
Typ.
5.0 V
5.75
0.00.0 0.0 V
V
2.2 5.0 V
CC
+ 0.5
0.80.0 V
—
UnitRated ValueConditions
V
V
V
W
°C
°C
Unit
°C
DC Characteristics
Parameter Symbol Unit
"H" Output Voltage
"L" Output Voltage
Input Leakage Current
Output Leakage Current
Power Supply Current
(Operating)
Power Supply Current
(Standby)
V
V
I
I
I
I
LO
I
CC
CCS
CCS
OH
OL
LI
1
CE = V
Conditions
I
= –400µA
OH
= 2.1mA
I
OH
VI = 0 to V
VO = 0 to V
CE = V
OE = V
IL
,
CE = V
CC
CE = V
IH MIN
IH,tC
–0.2V
IH MIN
CC
CC
= 80ns
(V
= 5V±5%, Ta = 0 to 70°C)
CC
Rated Value
Min. Max.
2.4
——
–10
–10
—
—
—
Typ.
——
0.4 V
—
—
—
—
—
10
10
35 mA
50
500
V
µA
µA
µA
µA
4

AC CHARACTERISTICS
Timing conditions
Parameter Conditions
Input Signal Level
Transtion Time
Timing Reference Level
Load Condition
Read Cycle
Parameter Symbol
Cycle time
Address Access time
CE Access time
OE Access time
CE Output Disable time
OE Output Disable time
Output Hold time
t
t
t
t
CHZ
t
OHZ
t
t
C
ACC
CE
OE
OH
V
tr=tf=5ns
Input Voltage=1.5V
Output Voltage=0.8V&2.0V
CL=50pF+1TTL
Conditions
—
—
—
—
—
—
—
=3.0V, VIL=0.0V
IH
Rated Value
Min. Max.
80
—
—
—
0
(Ta = 0 to 70°C)
Typ.
—
—
—
—
—
—
80
80
40
350
300
—
MSM534001E
Unit
—
ns
ns
ns
ns
ns
ns
—
ns
5

MSM534001E
Read Cycle (Note 1)
Address
OE
D
OUT
Read Cycle (Note 2)
t
ACC
t
C
t
OH
t
t
OE
OHZ
(Note 3)
t
C
CE
OE
D
OUT
Note) 1. CE is low level.
2. Address is fixed before or at the same time when CE level falls.
& t
3. t
CHZ
OHZ
indicate the time until floating. They are not determined by the output level.
I/O CAPACITANCE
Parameter Symbol
Input Capacitance
Output Capacitance
t
t
CE
t
OE
Conditions
=0V
C
I
C
O
V
I
=0V
V
O
CHZ
(Note 3)
Rated Value
Min. Max.
—
—
Typ.
—
—
8
10
Unit
pF
pF
6

Semiconductor
NOTICE
The information contained herein can change without notice owing to product and/or technical improvements. Before using the product, please make sure that the information being referred to is up-todate.
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 operation resulting from misuse, neglect, improper installation, repair, alteration or accident, improper handling, or unusual physical or electrical stress including, but not limited to, exposure to parameters beyond 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 commercial 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 devices, 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 particular 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.

ADDRESSES & SEMICONDUCTOR WEB SITES
OKI Electric Industry Co., Ltd.OKI Electric Industry Co., Ltd.
OKI Electric Industry Co., Ltd.,
OKI Electric Industry Co., Ltd.OKI Electric Industry Co., Ltd.
Device Business Group,
10-3, Shibaura, 4-chome,
Minato-ku, Tokyo 108, Japan,
Tel.: +81-(0)3-5445-6327,
Fax.: +81-(0)3-5445-6328,
http://www.oki.co.jp/OKI/DBG/english/index.htm
(NOTE: URL is case sensitive)
OKI Semiconductor GroupOKI Semiconductor Group
OKI Semiconductor Group,
OKI Semiconductor GroupOKI Semiconductor Group
785 North Mary Avenue,
Sunnyvale, CA 94086, U.S.A.,
Tel.: +1-408-720-1900,
Fax.: +1-408-720-1918,
http://www.okisemi.com/
OKI Electric Europe GmbHOKI Electric Europe GmbH
OKI Electric Europe GmbH,
OKI Electric Europe GmbHOKI Electric Europe GmbH
Head Office Europe,
Hellersbergstrasse 2,
D-41460 Neuss, Germany,
Tel: +49-2131-15960,
Fax: +49-2131-103539,
http://www.oki-europe.de/
OKI Electronics (Hong Kong) Ltd.OKI Electronics (Hong Kong) Ltd.
OKI Electronics (Hong Kong) Ltd.,
OKI Electronics (Hong Kong) Ltd.OKI Electronics (Hong Kong) Ltd.
Suite 1901-1&19, Tower 3,
China Hong Kong City,
33 Canton Road, Tsimshatsui,
Kowloon, Hong Kong,
Tel.: +852-2-736-2336,
Fax.: +852-2-736-2395
OKI Semiconductor (Asia) Pte. Ltd.OKI Semiconductor (Asia) Pte. Ltd.
OKI Semiconductor (Asia) Pte. Ltd.,
OKI Semiconductor (Asia) Pte. Ltd.OKI Semiconductor (Asia) Pte. Ltd.
78 Shenton Way 09-01,
Singapore 0207,
Tel.: +65-221-3722,
Fax.: +65-323-5376
OKI Semiconductor (Asia) Pte. Ltd.OKI Semiconductor (Asia) Pte. Ltd.
OKI Semiconductor (Asia) Pte. Ltd.,
OKI Semiconductor (Asia) Pte. Ltd.OKI Semiconductor (Asia) Pte. Ltd.
Taipei Branch,
7th Fl. No.260, Tun Hwa North Road,
Taipei, Taiwan, R.O.C.,
Sumitomo-Flysun Building,
Tel.: +886-2-2719-2561,
Fax.: +886-2-2715-2892
http://www.oki.net.tw/
For further information, please contact:
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