The MSM27C1602CZ is a 16Mbit electrically Programmable Read-Only Memory whose

configuration can be electrically switched between 1,048,576 word x 16bit and 2,097,152 word x 8
bit. The MSM27C1602CZ operates on a single +5V power supply and is TTL compatible. Since the
MSM27C1602CZ operates asynchronously , external clocks are not required , making this device
easy-to-use. The MSM27C1602CZ 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 42-pin DIP , 44-pin SOP or 48-pin TSOP packages.

MSM27C1602CZ

1,048,576-Word x 16-Bit or 2,097,152-Word x 8-Bit One Time PROM

DESCRIPTION

FEATURES

ˇ 1,048,576 word x 16bit / 2,097,152 word x 8bit electrically switchable configuration

ˇ Single +5V power supply
ˇ Access time 80ns
ˇ Input / Output TTL compatible
ˇ Three-state output
ˇ Packages 42-pin plastic DIP (DIP42-P-600-2.54)
44-pin plastic SOP (SOP44-P-600-1.27-K)
48-pin plastic TSOP (TSOP II 48-P-550-0.80-K)

Semiconductor

May 1999

PIN CONFIGURATION (TOP VIEW)

A18

A11

A12

A13

A14

A15

A16

D15/A-1

D14

D13

D12

A10

A19

A17

D10

D11

NC 1

BYTE/Vpp

44-pin SOP

A18

A11

A12

A13

A14

A15

A16

D15/A-1

D14

D13

D12

A10

A19

A17

D10

D11

BYTE/Vpp

48-pin TSOP

A18

A11

A12

A13

A14

A15

A16

D15/A-1

D14

D13

D12

A10

A19

A17

D10

D11

BYTE/Vpp

42-pin DIP

MSM27C1602CZ

PIN NAMES

FUNCTIONS

D15/A-1

Data Output / Address Input

A0 - A19

Address Input

D0 - D14

Data Output

Output Enable

Power Supply Voltage

BYTE/V

Mode Switch / Program Power Supply Voltage

Non Connection

Chip Enable

GND

BLOCK DIAGRAM

BYTE/V

PGM

Address Buffer

Row Decoder

Column Decoder

Memory Matrix

Multiplexer

Output Buffer

FUNCTION TABLE

STAND-BY

OUTPUT DISABLE

READ (8-Bit)

READ (16-Bit)

MODE

D15/A-1

OUT

L/H

* : Don't Care

D10

D11

D12

D13

D14

D15

X8/X16 Switch

A-1

In 8-bit output mode, these pins are
three-stated and pin D15 functions
as the A-1 address pin.

5.0V

D8 - D14

D0 - D7

OUT

Hi-Z

PROGRAM

PROGRAM INHIBIT

Hi-Z

PROGRAM VERIFY

OUT

11.5V

6.25V

MSM27C1602CZ

BYTE/V

1,048,576X16-Bit or 2,097,152X8-Bit

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19

Operating temperature under bias

Storage temperature

Input voltage

Output voltage

Power supply voltage

Program power supply voltage

Power dissipation per package

Parameter

Symbol

Topr

Unit

Value

Condition

RECOMMENDED OPERATING CONDITIONS FOR READ

power supply voltage

Input "H" level

Input "L" level

Parameter

Symbol

Unit

5.5

Typ.

4.5

Condition

stg

0 to 70

-55 to 125

-0.5 to V

+ 0.5

-0.5 to V

+ 0.5

-0.5 to 7

-0.5 to 12.5

1.0

relative to V

(Ta=0 to 70

Min.

Max.

+0.5

-0.5

+0.5

2.2

0.6

-0.5

=4.5V - 5.5V

Voltage is relative to Vss

ABSOLUTE MAXIMUM RATINGS

MSM27C1602CZ

Output

DC Characteristics

0.45

Input leakage current

Output leakage current

power supply current

(Standby)

power supply current

(Read)

power supply current

Parameter

Symbol

Unit

Condition

=5V

0.5V, Ta=0 to 70

Input "H" level

Input "L" level

Output "H" level

Output "L" level

Voltage is relative to Vss

Typ.

Min.

Max.

CS1

CS2

CCA

CE=V

tc=80ns

+0.5

2.2

0.8

-0.5

=-400

=2.1mA

CE=V

IL ,

OE=V

=0 to Vcc

2.4

ELECTRICAL CHARACTERISTICS (Read operation)

MSM27C1602CZ

400

ohms

100pF (including jig capacitance)

1.7V

0V/3V
0.8V/2.0V
1TTL gate + 100pF
0.8V/2.0V

Measurement conditions
Input signal level
Input timing reference level
Output load
Output timing reference level

AC Characteristics

Address access time

CE access time

OE access time

Output disable time

Parameter

Symbol

ACC

Unit

Condition

=5V

0.5V, Ta=0 to 70

Min.

Max.

CE=OE=V

Output hold time

CHZ

OHZ

Access cycle time

OE=V

CE=V

OE=V

CE=V

CE=OE=V

MSM27C1602CZ

ELECTRICAL CHARACTERISTICS (Programming operation)

DC Characteristics

Input leakage current

power supply current (Program)

power supply current

Parameter

Symbol

Unit

Typ.

Condition

(Ta=25

Min.

Max.

Input "L" level

PP2

+0.5V

CE=V

+0.5

2.2

0.8

-0.5

11.5

Voltage is relative to Vss

Input "H" level

2.4

=-400

Output "H" level

0.45

=2.1mA

Output "L" level

11.75

11.25

Program voltage

power supply voltage

6.5

6.0

6.25

AC Characteristics

Address set-up time

OE set-up time

Data set-up time

Parameter

Symbol

Unit

Typ.

Condition

Min.

Max.

Data hold time

OES

Address hold time

DFP

130

Output float delay from OE

voltage set-up time

Program pulse width

Data valid from OE

150

(Vcc=6.25V

0.25V,Vpp=11.5V

0.25V,Ta=25

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-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 speci-
fied operating ranges including, but not limited to, operating voltage, power dissipation, and operating tempera-
ture.

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 responsibil-
ity 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 applica-
tions (e.g., office automation, communication equipment, measurement equipment, consumer electronics, etc.).
These products are not authorized for use in any system or application 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 equip-
ment, and life-support systems.

Certain products in this document may need government approval before they can be exported to particular coun-
tries. 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.

ADDRESSES & SEMICONDUCTOR WEB SITES

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,

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,

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.,

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.,

78 Shenton Way 09-01,

Singapore 0207,

Tel.: +65-221-3722,

Fax.: +65-323-5376

Far Eastern Electric Industry Co., Ltd.,

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.ost.oki.co.jp/

For further information, please contact:

People To People Technology

Part Number MSM27C1602CZ