IS62WV5128DALL/DBLL, IS65WV5128DALL/DBLL
512Kꢀxꢀ8ꢀLOWꢀVOLTAGE,ꢀ
ULTRAꢀLOWꢀPOWERꢀCMOSꢀSTATICꢀRAMꢀ ꢀ
FEBRUARYꢀ2012
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
FEATURES
DESCRIPTION
Theꢀ ISSIꢀ IS62WV5128DALLꢀ /ꢀ IS62WV5128DBLLꢀ areꢀ
high-speed,ꢀ4MꢀbitꢀstaticꢀRAMsꢀorganizedꢀasꢀ512Kꢀwordsꢀ
byꢀ8ꢀbits.ꢀItꢀisꢀfabricatedꢀusingꢀISSI'sꢀhigh-performanceꢀ
CMOSꢀtechnology.ꢀThisꢀhighlyꢀreliableꢀprocessꢀcoupledꢀ
withꢀ innovativeꢀ circuitꢀ designꢀ techniques,ꢀ yieldsꢀ high-
performanceꢀandꢀlowꢀpowerꢀconsumptionꢀdevices.
•ꢀ High-speedꢀaccessꢀtime:ꢀꢀ35,ꢀ45,ꢀ55ꢀns
•ꢀ CMOSꢀlowꢀpowerꢀoperation
ꢀ ꢀ36ꢀmWꢀ(typical)ꢀoperating
ꢀ ꢀ9ꢀµWꢀ(typical)ꢀCMOSꢀstandby
•ꢀ TTLꢀcompatibleꢀinterfaceꢀlevels
•ꢀ Singleꢀpowerꢀsupplyꢀꢀ
Whenꢀ CS1ꢀ isꢀ HIGHꢀ (deselected)ꢀ theꢀ deviceꢀ assumesꢀ
aꢀstandbyꢀmodeꢀatꢀwhichꢀtheꢀpowerꢀdissipationꢀcanꢀbeꢀ
reducedꢀdownꢀwithꢀCMOSꢀinputꢀlevels.
ꢀ 1.65Vꢀ–ꢀ2.2VꢀVdd (IS62WV5128dALL)
ꢀ ꢀ2.3Vꢀ–ꢀ3.6VꢀVdd (IS62WV5128dBLL)
EasyꢀmemoryꢀexpansionꢀisꢀprovidedꢀbyꢀusingꢀChipꢀEnableꢀ
andꢀOutputꢀEnableꢀinputs.ꢀTheꢀactiveꢀLOWꢀWriteꢀEnableꢀ
(WE)ꢀcontrolsꢀbothꢀwritingꢀandꢀreadingꢀofꢀtheꢀmemory.
•ꢀ Fullyꢀstaticꢀoperation:ꢀnoꢀclockꢀorꢀrefreshꢀ
required
Theꢀ IS62WV5128DALLꢀ andꢀ IS62WV5128DBLLꢀ areꢀ
packagedꢀinꢀtheꢀJEDECꢀstandardꢀ32-pinꢀTSOPꢀ(TYPEꢀ
I),ꢀ32-pinꢀsTSOPꢀ(TYPEꢀI),ꢀ32-pinꢀTSOPꢀ(TypeꢀII),ꢀ32-pinꢀ
SOPꢀandꢀ36-pinꢀminiꢀBGA.
•ꢀ Threeꢀstateꢀoutputs
•ꢀ IndustrialꢀandꢀAutomotiveꢀtemperatureꢀsupport
•ꢀ Lead-freeꢀavailableꢀ
FUNCTIONALꢀBLOCKꢀDIAGRAM
512K x 8
MEMORY ARRAY
A0-A18
DECODER
VDD
GND
I/O
DATA
CIRCUIT
COLUMN I/O
I/O0-I/O7
CS1
OE
CONTROL
CIRCUIT
WE
Copyrightꢀ©ꢀ2012ꢀIntegratedꢀSiliconꢀSolution,ꢀInc.ꢀꢀAllꢀrightsꢀreserved.ꢀꢀISSIꢀreservesꢀtheꢀrightꢀtoꢀmakeꢀchangesꢀtoꢀthisꢀspecificationꢀandꢀitsꢀproductsꢀatꢀanyꢀtimeꢀwithoutꢀ
notice.ꢀꢀꢀISSIꢀassumesꢀnoꢀliabilityꢀarisingꢀoutꢀofꢀtheꢀapplicationꢀorꢀuseꢀofꢀanyꢀinformation,ꢀproductsꢀorꢀservicesꢀdescribedꢀherein.ꢀCustomersꢀareꢀadvisedꢀtoꢀobtainꢀtheꢀlat-
estꢀversionꢀofꢀthisꢀdeviceꢀspecificationꢀbeforeꢀrelyingꢀonꢀanyꢀpublishedꢀinformationꢀandꢀbeforeꢀplacingꢀordersꢀforꢀproducts.
IntegratedꢀSiliconꢀSolution,ꢀInc.ꢀdoesꢀnotꢀrecommendꢀtheꢀuseꢀofꢀanyꢀofꢀitsꢀproductsꢀinꢀlifeꢀsupportꢀapplicationsꢀwhereꢀtheꢀfailureꢀorꢀmalfunctionꢀofꢀtheꢀproductꢀcanꢀreason-
ablyꢀbeꢀexpectedꢀtoꢀcauseꢀfailureꢀofꢀtheꢀlifeꢀsupportꢀsystemꢀorꢀtoꢀsignificantlyꢀaffectꢀitsꢀsafetyꢀorꢀeffectiveness.ꢀProductsꢀareꢀnotꢀauthorizedꢀforꢀuseꢀinꢀsuchꢀapplicationsꢀ
unlessꢀIntegratedꢀSiliconꢀSolution,ꢀInc.ꢀreceivesꢀwrittenꢀassuranceꢀtoꢀitsꢀsatisfaction,ꢀthat:
a.)ꢀtheꢀriskꢀofꢀinjuryꢀorꢀdamageꢀhasꢀbeenꢀminimized;
b.)ꢀtheꢀuserꢀassumeꢀallꢀsuchꢀrisks;ꢀand
c.)ꢀpotentialꢀliabilityꢀofꢀIntegratedꢀSiliconꢀSolution,ꢀIncꢀisꢀadequatelyꢀprotectedꢀunderꢀtheꢀcircumstances
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774 ꢀ
1
Rev.ꢀ A
02/09/2012