Datasheet MSM534022E Datasheet (OKI)

Semiconductor

MSM534022E

262,144-Word x 16-Bit or 524,288-Word x 8-Bit MASKROM

DESCRIPTION

The OKI MSM534022E is a high-speed CMOS Mask ROM that can electrically switch
between 262,144-word x 16-bit and 524,288-word x -bit configurations. The MSM534022E
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 MSM534022E is suited for use as large capacity fixed memory for microcomputers and
data terminals.

FEATURES

Single 5.0V power supply
262,144-words x 16-bit/524,288-words x 8-bit
Access time
80ns MAX
Input/Output TTL compatible
Tri-State output configurations
Internal powerdown function
Packages:
40-PIN PLASTIC DIP (DIP40-P-600-2.54)
40-PIN PLASTIC SOP (SOP40-P-525-1.27-K)
44-PIN PLASTIC TSOP (TSOPII44-P-400-0.80-K)
4MEPROM (40-PIN) pin compatible

1

MSM534022E

PIN CONFIGURATION

1

A17

2

A7

3

A6

4

A5

5

A4

6

A3

7

A2

8

A1

9

A0

10

CE

11

V

SS

12

OE

13

D0

14

D8

15

D1

16

D9 D13

17

D2 D5

18

D10

19

D3

20

D11 V

40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21

A8
A9
A10
A11
A12
A13
A14
A15
A16
BYTE
V

SS

D15/A-1
D7
D14
D6

D12
D4

CC

1

NC

2

NC

3

A17

4

A7

5

A6

6

A5

7

A4

8

A3

9

A2

10

A1

11

A0

12

CE

13

V

SS

14

OE

15

D0

16

D8

17

D1

18

D9 D13

19

D2 D5

20

D10

21

D3

22

D11 V

44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23

NC
NC
A8
A9
A10
A11
A12
A13
A14
A15
A16
BYTE

V

SS

D15/A-1
D7
D14
D6

D12
D4

CC

40PINDIP/SOP

Pin Name

D15/A-1
A0 to A17
D0 to D15

CE
OE

BYTE

, V

V

CC

SS

44PINTSOP

Function
Data output / address input
Address input
Data output
Chip enable
Output enable
Mode switch
Power supply

2

BLOCK DIAGRAM

VCCV

SS

MSM534022E

A-1 BYTE

Output Switching Between 8 and 16 bits

CE OE

CE ControlOE

A0
A1
A2
A3
A4
A5
A6
A7
A8

Address

Buffer

A9
A10
A11
A12
A13
A14
A15
A16
A17

FUNCTION TABLE

OE

CE

H

L
L
L
L

BYTE

X

X

H

X
L
L
L

Input Inhibited (D15)

H

L

L

X

Decoder

Y

Decoder

X
X

L

H

262,144-Word x 16 or 524,288 x 8

D0

D1D2D3D4D5D6D7D8D9

D8 to D15D0 to D7A-1/D15
Hi-Z
Hi-Z

D0 to D7
D0 to D7

D8 to D15

Hi-Z
Hi-Z

D8 to D15

Hi-Z
Hi-Z

Memory Cell

Matrix

Multiplexer

Output Buffer

D

OUT

16 bit

D10

Mode

Hi-Z

8 bit

D11

D12

D14

D13

D15

LSB

——

A0

A-1

MSB

A17
A17

3

MSM534022E

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 Unit

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.

4.75

Typ.

5.0 V

5.25

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

°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

CE = VCC–0.2V

Conditions

I

= –400µA

OH

IOH = 2.1mA
VI = 0 to V

VO = 0 to V

CE = V

IH MIN

OE = V

IL

,

CE = V

IH MIN

IH,tC

CC

CC

= 80ns

(VCC = 5V±5%, Ta = 0 to 70°C)

Rated Value

Min. Max.

2.4
——

–10
–10

—
—

—

Typ.

——

0.4 V

—
—

—
—

—

10
10

45 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

ACC

t
t

t

CHZ

t

OHZ

t

t

CE
OE

OH

MSM534022E

=3.0V, VIL=0.0V

V

IH

tr=tf=5ns
Input Voltage=1.5V

Output Voltage=0.8V&2.0V
CL=50pF+1TTL

(Ta = 0 to 70°C)

Rated Value

—

80
80
40
350
300

—

Unit

ns
ns
ns
ns
ns
ns
ns

Conditions

C

—
—

—
—

Min. Max.

80

—
—

—
—
—
—

0

Typ.

—
—

—
—
—
—
—

5

MSM534022E

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

CHZ

(Note 3)

Rated Value

10

Unit

8

pF
pF

Conditions

=0V

C

I

C

O

V

I

VO=0V

Min. Max.

—
—

Typ.

—
—

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
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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
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Copyright 1998 Oki Electric Industry Co., Ltd.

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