IS61WV2568EDBLL-10BLI datasheet(3/14 Pages) ISSI

Part #	IS61WV2568EDBLL-10BLI

Description	256K x 8 HIGH SPEED ASYNCHRONOUS CMOS STATIC RAM WITH ECC

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

Direct Link	http://www.issi.com

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3 / 14 page

Integrated Silicon Solution, Inc. — www.issi.com

3

Rev. A

11/08/2011

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IS61/64WV2568EDBLL

ABSOLUTE MAXIMUM RATINGS(1)

Symbol Parameter

Value

Unit

Vterm

TerminalVoltagewithRespecttoGND

–0.5toVdd+0.5

V

Vdd

VddRelatestoGND

–0.3to4.0

V

tstg

StorageTemperature

–65to+150

°C

Pt

PowerDissipation

1.0

W

Notes:

1.StressgreaterthanthoselistedunderABSOLUTEMAXIMUMRATINGSmaycausepermanentdamageto

thedevice.Thisisastressratingonlyandfunctionaloperationofthedeviceattheseoranyotherconditions

abovethoseindicatedintheoperationalsectionsofthisspecificationisnotimplied.Exposuretoabsolute

maximumratingconditionsforextendedperiodsmayaffectreliability.

CAPACITANCE(1,2)

Symbol

Parameter

Conditions

Max.

Unit

Cin

InputCapacitance

Vin=0V

6

pF

C

i/O

Input/OutputCapacitance

VOut=0V

8

pF

Notes:

1.Testedinitiallyandafteranydesignorprocesschangesthatmayaffecttheseparameters.

2. Testconditions:Ta=25°C,f=1MHz,Vdd=3.3V.

ERROR DETECTION AND ERROR CORRECTION

• IndependentECCwithhammingcodeforeachbyte

• Detectandcorrectonebiterrorperbyte

• Betterreliabilitythanparitycodeschemeswhichcanonlydetectanerrorbutnotcorrectanerror

• BackwardCompatible:Dropinreplacementtocurrentinindustrystandarddevices(withoutECC)

TRUTH TABLE

Mode

CE

WE

OE

I/O Operation VDD Current

NotSelected

H

X

High-Z

isb1,isb2

(Power-down)

OutputDisabledL

H

High-Z

iCC

Read

L

H

L

dOut

iCC

Write

L

X

din

iCC

OPERATING RANGE (VDD)1

Range

Ambient Temperature

IS61WV2568EDBLL

IS64WV2568EDBLL

VDD (8, 10nS)

VDD (10nS)

Industrial

–40°Cto+85°C

2.4V-3.6V(10ns)

—

3.3V±10%(8ns)

Automotive(A1)

–40°Cto+85°C

—

2.4V-3.6V

Automotive(A3)

–40°Cto+125°C

—

2.4V-3.6V

Note:

1.ContactSRAM@issi.comfor1.8Voption

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