IDT71V016SA, 3.3V CMOS Static RAM
1 Meg (64K x 16-Bit)
Commercial and Industrial Temperature Ranges
Timing Waveform of Write Cycle No. 2 (CS Controlled Timing)(1,4)
tWC
ADDRESS
tAW
CS
(2)
tAS
tCW
tBW
BHE, BLE
tWP
tWR
WE
DATAOUT
DATAIN
tDH
tDW
DATAIN VALID
3834 drw 09
Timing Waveform of Write Cycle No. 3 (BHE, BLE Controlled Timing)(1,4)
tWC
ADDRESS
tAW
CS
(2)
tCW
tAS
tBW
BHE, BLE
tWP
tWR
WE
DATAOUT
DATAIN
tDH
tDW
DATAIN VALID
3834 drw 10
NOTES:
1. A write occurs during the overlap of a LOW CS, LOW BHE or BLE, and a LOW WE.
2. OEis continuouslyHIGH. IfduringaWE controlledwrite cycleOEis LOW, tWP mustbe greaterthanorequaltotWHZ+tDW toallowthe I/Odrivers toturnoffanddata tobe placed
onthe bus forthe requiredtDW. IfOEis HIGHduringaWEcontrolledwrite cycle, this requirementdoes notapplyandthe minimumwrite pulse is as shortas the specifiedtWP.
3. Duringthis period,I/Opins areintheoutputstate,andinputsignals mustnotbeapplied.
4. IftheCSLOWorBHEandBLELOWtransitionoccurssimultaneouslywithoraftertheWELOWtransition,theoutputsremaininahigh-impedancestate.
5. Transitionismeasured±200mVfromsteadystate.
6.42
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IDT [ INTEGRATED DEVICE TECHNOLOGY ]
