Datasheet MSM27C402CZ Datasheet (OKI)

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Semiconductor

MSM27C402CZ

262,144-Word x 16-Bit or 524,288-Word x 8-Bit One Time PROM

DESCRIPTION

The MSM27C402CZ is a 4Mbit electrically Programmable Read-Only Memory whose configuration

can be electrically switched between 262,144 word x 16bit and 524,288 word x 8bit. The MSM27C40
2CZ operates on a single +3.3V - 5V power supply and is TTL compatible. Since the MSM27C402
CZ operates asynchronously , external clocks are not required , making this device easy-to-use. The
MSM27C402CZ 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 40-pin DIP , 40-pin
SOP or 44-pin TSOP packages.

FEATURES

• 262,144 word x 16bit / 524,288 word x 8bit electrically switchable configuration

• Single +3.3V - 5V power supply

• Access time 120ns (Vcc=3.3V)
80ns (Vcc=5V)

• Input / Output TTL compatible

• Three-state output

• Packages 40-pin plastic DIP (DIP40-P-600-2.54)
40-pin plastic SOP (SOP40-P-525-1.27-K)
44-pin plastic TSOP (TSOP II 44-P-400-0.80-K)

1A

1

PIN CONFIGURATION (TOP VIEW)

MSM27C402CZ

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

NC

1

NC

2
1
2
3
4
5
6
7
8
9

A8

40

A9

39

A10

38

A11

37

A12

36

A13

35

A14

34

A15

33

A16

32
31

BYTE/Vpp
V

30

D15/A-1

29

D7

28

D14

27

D6

26

D13

25

D5

24

D12

23

D4

22

V

21

SS

CC

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

1
2
3
4
5
6
7
8
9

A8

40

A9

39

A10

38

A11

37

A12

36

A13

35

A14

34

A15

33

A16

32
31

BYTE/Vpp
V

30

D15/A-1

29

D7

28

D14

27

D6

26

D13

25

D5

24

D12

23

D4

22

V

21

SS

CC

A17

A7
A6
A5
A4
A3
A2
A1
A0

CE

V

SS

OE

D0
D8
D1
D9
D2

D10

D3

D11

3

4

5

6

7

8

9

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

NC

44

NC

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

40-pin DIP

40-pin SOP 44-pin TSOP

PIN NAMES

FUNCTIONS

D15/A-1 Data output / Address input
A0 - A17 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

2

MSM27C402CZ

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

Address Buffer

CE BYTE/V

OE

CE PGMOE

Memory Matrix

Row Decoder

262,144X16-Bit or 524,288X8-Bit

Multiplexer

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

3.0V
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

MSM27C402CZ

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=3.0V - 5.5V

0 to 70

-55 to 125
+ 0.5

CC

(Ta=0 to 70°C)

Min. Max.

3.0

-0.5

Typ.

-

-

-

-

5.5
+0.5

V

CC

+0.52.2

V

CC

0.6-0.5

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

MSM27C402CZ

ELECTRICAL CHARACTERISTICS (Read operation)

DC Characteristics 1

Parameter
Input leakage current
Output leakage current

power supply current

V

CC

(Standby)

power supply current

V

CC

(Read)
V

power supply current

PP

Input "H" level
Input "L" level
Output "H" level
Output "L" level

Voltage is relative to Vss

Symbol

I

LI

I

LO

I

CS1

I

CS2

I

CCA

I

PP

V

IH

V

IL

V

OH

V

OL

VI=0 to Vcc

VO=0 to Vcc

CE=V

IL ,

tc=120ns

I

CE=V

CE=V

OE=V

V

PP=VCC

=-200µA

OH

=1mA

OL

-

-

CC

IH

(V

=3.3V±0.3V, Ta=0 to 70°C)

CC

Min. Max.

IH

2.0

-0.5

VCC-0.4

Typ.

-

-

-

-

-mA

-

-

-

-

-

-

-

-

-

-

-

-

10
10
10

1
40
10

VCC+0.5

0.6

-

0.4

UnitCondition

µA
µA
µA

mA

µA

V
V
V
VI

DC Characteristics 2

Parameter
Input leakage current
Output leakage current

power supply current

V

CC

(Standby)

V

power supply current

CC

(Read)
V

power supply current

PP

Input "H" level
Input "L" level
Output "H" level
Output "L" level

Voltage is relative to Vss

Symbol

I

LI

I

LO

I

CS1

I

CS2

I

CCA

I

PP

V

IH

V

IL

V

OH

V

OL

CE=V
tc=80ns

VI=0 to Vcc

=0 to Vcc

V

O

CE=V

CE=V

OE=V

IL ,

VPP=V

-

-

=-400µA

I

OH

=2.1mA

OL

CC

IH

CC

=5V±0.5V, Ta=0 to 70°C)

(V

CC

Min. Max.

IH

2.2

-0.5 V

2.4

Typ.

-

-

-

-

-mA

-

-

-

-

-

-

-

-

-

-

-

-

10
10
50

1
70
10

VCC+0.5

0.8

-

0.45

UnitCondition

µA
µA
µA

mA

µA

V

V
VI

5

AC Characteristics 1

Parameter

Access cycle time
Address access time
CE access time
OE access time

Output disable time
Output hold time

Symbol

T

C

T

ACC

T

CE

T

OE

T

CHZ

T

OHZ

T

OH

-

CE=OE=V

OE=V

IL

CE=V

IL

OE=V

IL

CE=V

IL

CE=OE=V

MSM27C402CZ

=3.3V±0.3V, Ta=0 to 70°C)

(V

CC

Min. Max.
120

IL

-

-

-

­120
120

70
600

0

IL

0

55

-

UnitCondition

ns
ns
ns
ns
ns
ns
ns

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

Output

AC Characteristics 2

Parameter

Access cycle time
Address access time
CE access time
OE access time

Output disable time
Output hold time

Symbol

T

C

T

ACC

T

CE

T

OE

T

CHZ

T

OHZ

T

OH

0V/3V

0.8V/2.0V
100pF

0.8V/2.0V

1.7V

-

CE=OE=V

OE=V

IL

CE=V

IL

OE=V

IL

CE=V

IL

CE=OE=V

400

100pF (including jig capacitance)

=5V±0.5V, Ta=0 to 70°C)

(V

CC

Min. Max.

80

IL

-

-

-

80
80
50
400

0

IL

0

35

UnitCondition

-

ns
ns
ns
ns
ns
ns

-

ns

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

Output

0V/3V

0.8V/2.0V
1TTL gate + 100pF

0.8V/2.0V

1.7V

400

100pF (including jig capacitance)

6

MSM27C402CZ

TIMING CHART (READ CYCLE)

16-Bit Read Mode (BYTE=V

A0 - A17

CE

OE

D0 - D15

)

IH

t

C

t

t

ACC

t

CE

t

OE

t

OHZ

OH

t

CHZ

Valid Data

Hi-ZHi-Z

8-Bit Read Mode (BYTE=V

A-1 - A17

CE

OE

D0 - D7

D8 - D14

)

IL

t

C

t

t

ACC

t

CE

t

OE

t

OHZ

OH

t

CHZ

Valid Data

Hi-ZHi-Z

Hi-Z

7

ELECTRICAL CHARACTERISTICS (Programming operation)

DC Characteristics

MSM27C402CZ

Parameter
Input leakage current
VPP power supply current (Program)
VCC power supply current

Input "H" level
Input "L" level
Output "H" level
Output "L" level
Program voltage
V

power supply voltage

CC

Voltage is relative to Vss

AC Characteristics

Parameter
Address set-up time
OE set-up time
Data set-up time

Address hold time
Data hold time
Output float delay from OE
VPP voltage set-up time
Program pulse width
Data valid from OE

Symbol

I

LI

I

PP2

I

CC

V

IH

V

IL

V

OH

V

OL

V

PP

V

CC

Symbol

T

AS

T

OES

T

DS

T

AH

T

DH

T

DFP

T

VS

T

PW

T

OE

Condition

+0.5V

V

I=VCC

CE=V

IL

-

-

=-400µA

OH

=2.1mA

I

OL

-

-

(Vcc=6.25V

Condition

-

-

-

-

-

-

-

-

Min. Max.

-

-

-

2.2

-0.5

2.4

-

6.0

±0.25V,V

=11.5V±0.25V,Ta=25°C±5°C)

pp

Min. Max.

2
2
2
0
2 µs
0
2

-

Typ.

-

-

--

-

-

-

-

11.5

6.25

Typ.

-

-

--

-

-

-

25

-

(Ta=25°C

10
50
80

V

+0.5

CC

0.8

-

0.45

11.7511.25

6.5

-

-

-

-

-

130

-

2723

150

±5°C)

Unit

µA
mA
mA

V
V

VI
V
V

V

Unit

µs
µs
µs
µs

ns-

µs
µs

ns

8

MSM27C402CZ

Programming Waveform

A0 - A17

CE

t

t

DFP

AH

t

AS

t

PW

t

OES

OE

D0 - D15

BYTE/V

PP

PIN Capacitance

Parameter
Input
BYTE/V
Output

PP

t

DS

D

IN

t

VS

Program

t

DH

t

OE

D

OUT

Program Verify

(VCC=5V, Ta=25°C, f=1MHz)

Symbol

C

IN1

C

IN2

C

OUT

Condition

=0V

V

I

V

=0V

O

Min. Max.

-

--

--

Typ.

-

12
60
15

Unit

pF

9

High Speed Programming Algorithm ( I )

Start

First Address

VCC=6.25V

V

=11.5V

PP

X=0

MSM27C402CZ

Increment Address

NG

NO

X=10 ?

NO

Program 25µs

X=X+1

Verify (One Byte)

PASS

Last Address ?

YES

VCC=5.5V
VPP=5.5V

Compare All

YES

NG

PASS

VCC=4.5V
V

=4.5V

PP

Compare All

PASS

Device Passed

NG

Device Failed

10

MSM27C402CZ

High Speed Programming Algorithm ( II )

First Address

VCC=6.25V
V

Program 25µs

Start

=11.5V

PP

Increment Address

Increment Address

NO

Last Address ?

First Address

Verify (One Byte)

NO

Last Address ?

Compare All

YES

X=0

PASS

YES

VCC=5.5V
V

=5.5V

PP

NG

NG

X=X+1

YES

X=10 ?

NO

Program 25µs

11

PASS

VCC=4.5V

V

=4.5V

PP

Compare All

PASS

Device Passed

NG

Device Failed

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
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Copyright 1998 Oki Electric Industry Co., Ltd.

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