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IS61WV25616BLL-10KLI

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
10 Integrated Silicon Solution, Inc. — www.issi.com
Rev. H1
02/10/2017
IS61WV25616ALL/ALS, IS61WV25616BLL/BLS,
IS64WV25616BLL/BLS
READ CYCLE SWITCHING CHARACTERISTICS
(1)
(Over Operating Range)
-20 ns -25 ns -35 ns -45ns
Symbol Parameter Min. Max. Min. Max. Min. Max. Min. Max. Unit
trc ReadCycleTime 20 — 25  — 35 — 45 — ns
tAA AddressAccessTime — 20 — 25 — 35 — 45 ns
toHA OutputHoldTime 2.5 — 4 — 4 — 7 — ns
tAce CEAccessTime — 20 — 25 — 35 — 45 ns
tdoe OEAccessTime — 8 — 12 — 15 — 20 ns
tHzoe
(2)
OEtoHigh-ZOutput 0 8 0 8 0 10 0 15 ns
tLzoe
(2)
OE to Low-Z Output 0 — 0 — 0 — 0 — ns
tHzce
(2
CEtoHigh-ZOutput  0 8 0 8 0 10 0 15 ns
tLzce
(2)
CEtoLow-ZOutput 3 — 10  — 10 — 15 — ns
tbA LB, UBAccessTime — 8 — 25 — 35 — 45 ns
tHzb LB, UBtoHigh-ZOutput 0 8 0 8 0 10 0 15 ns
tLzb LB, UB to Low-Z Output 0 — 0 — 0 — 0 — ns
Notes:
1. Testconditionsassumesignaltransitiontimesof1.5nsorless,timingreferencelevelsof1.25V,inputpulselevelsof0.4Vto
V
dd-0.3VandoutputloadingspeciedinFigure1a.
2. TestedwiththeloadinFigure1b.Transitionismeasured±500mVfromsteady-statevoltage.Not100%tested.
3. Not100%tested.
Integrated Silicon Solution, Inc. — www.issi.com 11
Rev. H1
02/10/2017
IS61WV25616ALL/ALS, IS61WV25616BLL/BLS,
IS64WV25616BLL/BLS
DATA VALID
READ1.eps
PREVIOUS DATA VALID
t
AA
t
OHA
t
OHA
t
RC
DOUT
ADDRESS
AC WAVEFORMS
READ CYCLE NO. 1
(1,2)
(Address Controlled) (CE = OE = VIL, UB or LB = VIL)
t
RC
t
OHA
t
AA
t
DOE
t
LZOE
t
ACE
t
LZCE
t
HZOE
HIGH-Z
DATA VALID
UB_CEDR2.eps
t
HZB
ADDRESS
OE
CE
LB, UB
D
OUT
t
HZCE
t
BA
t
LZB
t
RC
t
PD
I
SB
I
CC
50%
V
DD
Supply
Current
50%
t
PU
READ CYCLE NO. 2
(1,3)
Notes:
1. WE is HIGH for a Read Cycle.
2. Thedeviceiscontinuouslyselected.OE, CE, UB, or LB =
VIL.
3. AddressisvalidpriortoorcoincidentwithCE LOW transition.
12 Integrated Silicon Solution, Inc. — www.issi.com
Rev. H1
02/10/2017
IS61WV25616ALL/ALS, IS61WV25616BLL/BLS,
IS64WV25616BLL/BLS
WRITE CYCLE SWITCHING CHARACTERISTICS
(1,3)
(Over Operating Range)
-8 -10
Symbol Parameter Min. Max. Min. Max. Unit
twc WriteCycleTime 8 — 10 — ns
tsce CEtoWriteEnd 6.5 — 8 — ns
tAw AddressSetupTime 6.5 — 8 — ns
to Write End
tHA Address Hold from Write End 0 — 0 — ns
tsA AddressSetupTime 0 — 0 — ns
tPwb LB, UBValidtoEndofWrite 6.5 — 8 — ns
tPwe1 WEPulseWidth 6.5 — 8 — ns
tPwe2 WE Pulse Width (OE=LOW) 8.0 — 10 — ns
tsd Data Setup to Write End 5 — 6 — ns
tHd Data Hold from Write End 0 — 0 — ns
tHzwe
(2)
WELOWtoHigh-ZOutput — 3.5 — 5 ns
tLzwe
(2)
WE HIGH to Low-Z Output 2 — 2 — ns
Notes:
1. Testconditionsassumesignaltransitiontimesof3nsorless,timingreferencelevelsof1.5V,inputpulselevelsof0Vto3.0V
andoutputloadingspeciedinFigure1.
2. TestedwiththeloadinFigure2.Transitionismeasured±500mVfromsteady-statevoltage.Not100%tested.
3. TheinternalwritetimeisdenedbytheoverlapofCE LOW and UB or LB, 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. Shaded area product in development
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

IS61WV25616BLL-10KLI

Mfr. #:
Buy IS61WV25616BLL-10KLI
Manufacturer:
ISSI
Description:
SRAM 4Mb, 2.4v-3.6v, 10ns 256K x 16 Async SRAM
Lifecycle:
New from this manufacturer.
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