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IS62WV1288BLL-55TI

P1-P3P4-P6P7-P9P10-P12P13-P15
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774 7
Rev. E
11/12/08
IS62WV1288ALL, IS62WV1288BLL, IS65WV1288BLL
AC WAVEFORMS
READ CYCLE NO. 2
(1,3)
(CS1, CS2, OE Controlled)
Notes:
1. WEisHIGHforaReadCycle.
2. Thedeviceiscontinuouslyselected.OE, CS1= V
I L . cs2=WE=VI h.
3. Address is valid prior to or coincident with CS1LOWandcs2 hIgh transition.
t
RC
t
OHA
t
AA
t
DOE
t
LZOE
t
ACS1/
t
ACS2
t
LZCS1/
t
LZCS2
t
HZOE
HIGH-Z
DATA VALID
t
HZCS
ADDRESS
OE
CS1
CS2
DOUT
8 Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. E
11/12/08
IS62WV1288ALL, IS62WV1288BLL, IS65WV1288BLL
WRITE CYCLE SWITCHING CHARACTERISTICS
(1,2)
(OverOperatingRange)
45 ns 55 ns 70 ns
Symbol Parameter Min. Max. Min. Max. Min. Max. Unit
tW c WriteCycleTime 45 — 55 — 70 — ns
ts c s 1/ts c s 2 CS1/CS2toWriteEnd 35 — 45 — 60 — ns
tA W AddressSetupTimetoWriteEnd 35 — 45 — 60 — ns
th A AddressHoldfromWriteEnd 0 — 0 — 0 — ns
ts A AddressSetupTime 0 — 0 — 0 — ns
tP W e WEPulseWidth 35 — 40 — 50 — ns
ts d DataSetuptoWriteEnd 20 — 25 — 30 — ns
th d DataHoldfromWriteEnd 0 — 0 — 0 — ns
th z W e
(3)
WELOWtoHigh-ZOutput — 20 — 20 — 20 ns
tL z W e
(3)
WEHIGHtoLow-ZOutput 5 — 5 — 5 — ns
Notes:
1. Testconditionsassumesignaltransitiontimesof5nsorless,timingreferencelevelsof0.9V/1.5V,inputpulselevelsof0.4Vto
V
d d -0.2V/Vd d -0.3VandoutputloadingspeciedinFigure1.
2.
TheinternalwritetimeisdenedbytheoverlapofCS1LOW,CS2HIGH,andWELOW.AllsignalsmustbeinvalidstatestoinitiateaWrite,butanyonecan
go inactive to
terminatetheWrite.TheDataInputSetupandHoldtimingarereferencedtotherisingorfallingedgeofthesignalthatterminatesthewrite.
3. TestedwiththeloadinFigure2.Transitionismeasured±500mVfromsteady-statevoltage.Not100%tested.
AC WAVEFORMS
WRITE CYCLE NO. 1 (CS1/CS2 Controlled, OE=HIGHorLOW)
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774 9
Rev. E
11/12/08
IS62WV1288ALL, IS62WV1288BLL, IS65WV1288BLL
AC WAVEFORMS
WRITE CYCLE NO. 2
(WEControlled:OEisHIGHDuringWriteCycle)
WRITE CYCLE NO. 3 (WEControlled:OEisLOWDuringWriteCycle)
DATA-IN VALID
DATA UNDEFINED
t
WC
t
SCS1
t
SCS2
t
AW
t
HA
t
PWE
t
HZWE
HIGH-Z
t
LZWE
t
SA
t
SD
t
HD
ADDRESS
OE
CS1
CS2
WE
DOUT
DIN
DATA-IN VALID
DATA UNDEFINED
t
WC
t
SCS1
t
SCS2
t
AW
t
HA
t
PWE
t
HZWE
HIGH-Z
t
LZWE
t
SA
t
SD
t
HD
ADDRESS
OE
CS1
CS2
WE
DOUT
DIN
P1-P3P4-P6P7-P9P10-P12P13-P15

IS62WV1288BLL-55TI

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Buy IS62WV1288BLL-55TI
Manufacturer:
ISSI
Description:
SRAM 1Mb 128Kx8 55ns Async SRAM
Lifecycle:
New from this manufacturer.
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