OKI MSM27C3252CZ Datasheet

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Semiconductor

MSM27C3252CZ

2,097,152-Word x 16-Bit or 4,194,304-Word x 8-Bit
8-Word x 16-Bit or 16-Word x 8-Bit Page Mode One Time PROM

DESCRIPTION

The MSM27C3252CZ is a 32Mbit electrically Programmable Read-Only Memory with page mode.

Its configuration can be electrically switched between 2,097,152 word x 16bit and 4,194,304 word x
8bit. The MSM27C3252CZ operates on a single +5V power supply and is TTL compatible. The
MSM27C3252CZ provides Page mode which can greatly reduce the read access time. Since the
MSM27C3252CZ operates asynchronously , external clocks are not required , making this device
easy-to-use. The MSM27C3252CZ 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 44-pin SOP or 48-pin TSOP packages.

FEATURES

• 2,097,152 word x 16bit / 4,194,304 word x 8bit electrically switchable configuration

• Single +5V power supply

• Access time 100ns
Page mode access time 50ns

• Input / Output TTL compatible

• Three-state output

• Packages
44-pin plastic SOP (SOP44-P-600-1.27-K)
48-pin plastic TSOP (TSOP II 48-P-550-0.80-K)

1A

1

PIN CONFIGURATION (TOP VIEW)

MSM27C3252CZ

NC
A18
A17

A7
A6
A5
A4
A3
A2
A1
A0

CE
V

SS

OE

D0
D8
D1
D9
D2

D10

D3

D11

10
11
12
13
14
15
16
17
18
19
20
21

NC

1

NC

2

A20

1
2
3
4
5
6
7
8
9

44

A19

43

A8

42

A9

41

A10

40

A11

39

A12

38

A13

37

A14

36

A15

35

A16

34
33

BYTE/Vpp
V

32

D15/A-1

31

D7

30

D14

29

D6

28

D13

27

D5

26

D12

25

D4

24

V

2322

SS

CC

NC
A18
A17

A7
A6
A5
A4
A3
A2
A1
A0

CE
V

SS

OE

D0
D8
D1
D9
D2

D10

D3

D11

4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

NC

48

NC

47

A20

463

A19

45

A8

44

A9

43

A10

42

A11

41

A12

40

A13

39

A14

38

A15

37

A16

36
35

BYTE/Vpp
V

34

D15/A-1

33

D7

32

D14

31

D6

30

D13

29

D5

28

D12

27

D4

26

V

2524

SS

CC

PIN NAMES

FUNCTIONS

D15/A-1 Data output / Address input
A0 - A20 Address input
D0 - D14 Data output

CE
OE

V

CC

V

SS

BYTE/V

NC

PP

Chip enable
Output enable
Power supply voltage
GND
Mode switch / Program power supply voltage
Non connection

48-pin TSOP44-pin SOP

2

MSM27C3252CZ

BLOCK DIAGRAM

A-1

X8/X16 Switch

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20

Address Buffer

CE BYTE/V

OE

CE PGMOE

Memory Matrix

Row Decoder

2,097,152X16-Bit or 4,194,304X8-Bit

Multiplexer & Page Data Latch

Column Decoder

Output Buffer

D0

D1D2D3D4D5D6D7D8D9

PP

D10

D11

D12

D13

D14

D15

FUNCTION TABLE

MODE
READ (16-Bit)
READ (8-Bit)

OUTPUT DISABLE

STAND-BY
PROGRAM

PROGRAM INHIBIT
PROGRAM VERIFY

* : Don't Care
3

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

PP

V

CC

4.5V
to

5.5V

6.25V

D

OUT

D8 - D14D0 - D7

D

Hi-Z
Hi-Z

Hi-Z

D

D

L

H

*

BYTE/V

H

L

H

L

H

L

CE OE

LL
L

L

H
LH

H H Hi-Z

11.5V

HL

D15/A-1

OUT

L/H

*

*

IN

OUT

ABSOLUTE MAXIMUM RATINGS

MSM27C3252CZ

Parameter
Operating temperature under bias
Storage temperature

Input voltage
Output voltage
Power supply voltage
Program power supply voltage
Power dissipation per package

Symbol

Topr
T

stg

V

I

V

O

V

CC

V

PP

P

D

-

relative to V

-

SS

RECOMMENDED OPERATING CONDITIONS FOR READ

Parameter Symbol
VCC power supply voltage
VPP power supply voltage
Input "H" level
Input "L" level

Voltage is relative to Vss

V

CC

V

PP

V

IH

V

IL

Condition

VCC=4.5V - 5.5V

0 to 70

-55 to 125
+ 0.5

CC

(Ta=0 to 70°C)

Min. Max.

4.5

-0.5

Typ.

-

-

-

-

5.5
+0.5

V

CC

+0.52.2

V

CC

0.8-0.5

UnitValueCondition

°C
°C

V-0.5 to V
V-0.5 to VCC + 0.5
V-0.5 to 7
V-0.5 to 12.5

W1.0

Unit

V
V
V
V

4