IS61LV256AL

2

Integrated Silicon Solution, Inc. — 1-800-379-4774

Rev. C

07/29/09

PIN CONFIGURATION

28-Pin SOJ

22

23

24

25

26

27

28

1

2

3

4

5

6

7

21

20

19

18

17

16

15

14

13

12

11

10

9

8

OE

A11

A9

A8

A13

WE

VDD

A14

A12

A7

A6

A5

A4

A3

A10

CE

I/O7

I/O6

I/O5

I/O4

I/O3

GND

I/O2

I/O1

I/O0

A0

A1

A2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

A14

A12

A7

A6

A5

A4

A3

A2

A1

A0

I/O0

I/O1

I/O2

GND

VDD

WE

A13

A8

A9

A11

OE

A10

CE

I/O7

I/O6

I/O5

I/O4

I/O3

PIN CONFIGURATION

28-Pin TSOP (Type I)

PIN DESCRIPTIONS

A0-A14 AddressInputs

CE

Chip Enable Input

OE

OutputEnableInput

WE

Write Enable Input

I/O0-I/O7Input/Output

Power

GND

Ground

TRUTH TABLE

Mode

WE

CE

OE

I/O Operation

NotSelected

X

H

X

High-Z

(Power-down)

OutputDisabled

H

L

H

High-Z

Read

H

L

L

Write

L

L

X

Symbol Parameter

Value

Unit

PowerSupplyVoltageRelativetoGND

–0.5to+4.6

V

TerminalVoltagewithRespecttoGND

–0.5to+4.6

V

StorageTemperature

–65to+150

°C

PowerDissipation

1

W

DCOutputCurrent

±20

mA

Notes:

1.StressgreaterthanthoselistedunderABSOLUTEMAXIMUMRATINGSmaycausepermanentdam-

agetothedevice.Thisisastressratingonlyandfunctionaloperationofthedeviceattheseoranyother

conditionsabovethoseindicatedintheoperationalsectionsofthisspecificationisnotimplied.Exposure

toabsolutemaximumratingconditionsforextendedperiodsmayaffectreliability.