Semiconductor

524,288-Words x 16-bit or 1,048,576-Bytes x 8-bit MaskROM
8Words x 16-Bit or 16Bytes x 8-Bit/Page Mode MASKROM

DESCRIPTION

FEATURES

Pin compatible OTP available

Packages:
42-PIN PLASTIC DIP
44-PIN PLASTIC SOP
44-PIN PLASTIC TSOP

Internal powerdown function

Tri-State output configurations

Input/Output TTL compatible

Access time

100ns Max (Normal access)
50ns Max (Page access)

524,288-words x 16-bit / 1,048,576-Bytes x 8-bit

Single 5.0V power supply

The OKI MSM538052E is a 524,288-words x 16-bit or 1,048,576-Bytes x 8-bit CMOS Mask
ROM with an asynchronous page read mode. Each page is organized 8 words x 16-bit or 16
words x 8-bit. It 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 MSM538052E is suited for use as large capacity fixed memory for
microcomputers and data terminals.

MSM538052E

8-words(A2,A1,A0) or 16-Bytes(A2,A1,A0,A-1) / Page

(DIP42-P-600-2.54)

(SOP44-P-600-1.27-K)
(TSOP44-P-400-0.80-1K)

(MSM538052E-xxRS)

(MSM538052E-xxGS-K)
(MSM538052E-xxTS-AK)

1998.10

MSM538052E

PIN CONFIGURATION

BYTE

A17

A10

A11

A12

A13

A14

A15

A16

D15/A-1

D14

42PIN DIP

D13

D10

D12

D11

A18

BYTE

A17

A10

A11

A12

A13

A14

A15

A16

D15/A-1

D14

44PIN SOP/

TSOP

D13

D10

D12

D11

A18

Pin Name

Function

D15/A-1

Data output / address input

A0 to A18

Address input

D0 to D15

Data output

Output enable

BYTE

Mode switch

, V

Power supply

Chip enable

MSM538052E

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9

A10
A11
A12
A13
A14
A15
A16
A17
A18

BLOCK DIAGRAM

Control

Address

Buffer

Memory Cell

Matrix

524,288 x 16 or 1,048,676 x 8

FUNCTION TABLE

Output Switching Between 8 and 16 bits

A-1

BYTE

MSB

BYTE

Input Inhibited (D15)

D8 to D15

LSB

DOUT Mode

D8--D15

D0--D7

A-1/D15

D0 to D7

Hi-Z

D8 to D15

Hi-Z

16 bit

8 bit

A-1

A18

Input Inhibited (D15)

D0 to D7

D8 to D15

16 bit(Page Mode)

D8 to D15

D0 to D7

Hi-Z

8 bit(Page Mode)

A-1

Decoder

Multiplexer & Page Data Latch

Output Buffer

D10

D11

D12

D13

D14

D15

MSM538052E

RECOMMENDED OPERATING CONDITIONS

ABSOLUTE MAXIMUM LIMITS

DC CHARACTERISTICS

Operating Temperature

Storage Temperature

Power Supply Voltage

Input Voltage

Output Voltage

Power Dissipation

Parameter

Symbol

Unit

Limits

Conditions

�0.3 to 7

�0.3 to V

+ 0.5

�0.3 to V

+ 0.5

0 to 70

�55 to 150

1.0

�C

Per Package T

opr

= 25�C

to V

opr

stg

Power Supply Voltage

"H" Input Voltage

"L" Input Voltage

Parameter

Symbol

Unit

5.5

Typ.

4.5

Conditions

Min.

Max.

5.0

0.0

2.2

5.0

0.8

0.0

Operating Temperature

Limits

�0.3

�C

opr

"H" Output Voltage

"L" Output Voltage

Parameter

Symbol

Unit

Typ.

2.4

Conditions

Min.

Max.

Power Supply Current
(Operating)

0.4

�A

500

�A

Input Leakage Current

Output Leakage Current

Power Supply Current
(Standby)

�A

Limits

= 5V�10%, Ta = 0 to 70�C)

= �400�A

= 2.1mA

�10

CE = V

�0.2V

CE = V

IH MIN

= 0 to V

CE = V

IH MIN

CE = V

IL,

OE = V

IH,

= 100ns

CCS

CCS1

5.5

MSM538052E

Address

OUT

ACC

AC CHARACTERISTICS

Test conditions

Parameter

Conditions

Input Signal Level

Transtion Time

Timing Reference Level

Load Condition

=3.0V, V

=0.0V

tr=tf=5ns
Input Voltage=1.5V
Output Voltage=0.8V&2.0V

CL=100pF+1TTL

Random Access Cycle time

Parameter

Symbol

Unit

Typ.

100

Conditions

Min.

Max.

100

Read Cycle

Random Address Access time

Page Set up time

OE Access time

CE Output Disable time

OE Output Disable time

Output Hold time

Limits

(Ta = 0 to 70�C)

120

ACC

PSET

CHZ

OHZ

Page Access Cycle time

100

Page Access time

CE Access time

PAC

Read Cycle (Note1)

MSM538052E

OUT

CHZ

Page Mode Read Cycle (Note4)

Address
A3 - A17

PSET

OUT

ACC

PAC

Address
A0 - A2

Read Cycle (Note2)

(Note 3)

Note)

1. CE is low level.

2. Address is fixed before or at the same time when CE level falls.
3. t

CHZ

& t

OHZ

indicate the time until floating. They are not determined by the output level.

4. CE is low level and OE is low level.

I/O CAPACITANCE

Input Capacitance

Output Capacitance

Parameter

Symbol

Unit

Typ.

Conditions

Min.

Max.

Rated Value

=0V

OHZ

(Note 3)

Page 1

Semiconductor

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.

Marketing Communications Team (RB)

ADDRESSES & SEMICONDUCTOR WEB SITES

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/semi/

OKI Semiconductor Group

OKI 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 GmbH

OKI 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.,
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.,
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.,
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:

People To People Technology

Электронный компонент: MSM538052E