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

5

Rev. C

07/29/09

IS61LV256AL

AC TEST LOADS

Figure 1.

Figure 2.

AC TEST CONDITIONS

Parameter

Unit

InputPulseLevel

0Vto3.0V

InputRiseandFallTimes

3ns

InputandOutputTiming

1.5V

andReferenceLevels

OutputLoad

SeeFigures1and2

-10 ns

-12 ns

Symbol

Parameter

Min.

Max.

Min.

Max.

Unit

ReadCycleTime

10

—

12

—

ns

AddressAccessTime

—

10

—

12

ns

OutputHoldTime

2

—

2

—

ns

CE

AccessTime

—

10

—

12

ns

OE

AccessTime

—

5

—

5

ns

OE

toLow-ZOutput

0

—

0

—

ns

OE

toHigh-ZOutput

—

5

—

5

ns

CE

toLow-ZOutput

3

—

3

—

ns

CE

toHigh-ZOutput

—

5

—

6

ns

CE

toPower-Up

0

—

0

—

ns

CE

toPower-Down

—

10

—

12

ns

Notes:

1. Testconditionsassumesignaltransitiontimesof3nsorless,timingreferencelevelsof1.5V,inputpulselevelsof0to3.0Vand

outputloadingspecifiedinFigure1.

2. TestedwiththeloadinFigure2.Transitionismeasured±200mVfromsteady-statevoltage.Not100%tested.

3. Not100%tested.

319

Ω

30 pF

Including

jig and

scope

353

Ω

OUTPUT

3.3V

319

Ω

5 pF

Including

jig and

scope

353

Ω

OUTPUT

3.3V