performanceꢀCMOSꢀtechnology.Thisꢀhighlyꢀreliableꢀprocessꢀ
IS61WV6416DALL/DALS
IS61WV6416DBLL/DBLS
IS64WV6416DBLL/DBLS
64K x 16 HIGH SPEED ASYNCHRONOUS
CMOS STATIC RAM
JANUARY 2011
DESCRIPTION
FEATURES
TheꢀISSIꢀIS61WV6416DAxx/DBxxꢀandꢀIS64WV6416DBxxꢀ
areꢀhigh-speed,ꢀ1,048,576-bitꢀstaticꢀRAMsꢀorganizedꢀasꢀ
65,536ꢀwordsꢀbyꢀ16ꢀbits.ꢀItꢀisꢀfabricatedꢀusingꢀISSI'sꢀhigh-
HIGHꢀSPEED:ꢀ(IS61/64WV6416DALL/DBLL)
•ꢀ High-speedꢀaccessꢀtime:ꢀ8,ꢀ10,ꢀ12,ꢀ20ꢀns
•ꢀ LowꢀActiveꢀPower:ꢀ135ꢀmWꢀ(typical)
•ꢀ LowꢀStandbyꢀPower:ꢀ12ꢀµWꢀ(typical)
coupledꢀwithꢀinnovativeꢀcircuitꢀdesignꢀtechniques,ꢀyieldsꢀ
high-performanceꢀandꢀlowꢀpowerꢀconsumptionꢀdevices.
CMOSꢀstandby
LOWꢀPOWER:ꢀ(IS61/64WV6416DALS/DBLS)
•ꢀ High-speedꢀaccessꢀtime:ꢀ25,ꢀ35ꢀns
•ꢀ LowꢀActiveꢀPower:ꢀ55ꢀmWꢀ(typical)
WhenꢀCEꢀisꢀHIGHꢀ(deselected),ꢀtheꢀdeviceꢀassumesꢀaꢀ
standbyꢀmodeꢀatꢀwhichꢀtheꢀpowerꢀdissipationꢀcanꢀbeꢀre-
ducedꢀdownꢀwithꢀCMOSꢀinputꢀlevels.
•ꢀ LowꢀStandbyꢀPower:ꢀ12ꢀµWꢀ(typical)
CMOSꢀstandby
EasyꢀmemoryꢀexpansionꢀisꢀprovidedꢀbyꢀusingꢀChipꢀEnableꢀ
andꢀOutputꢀEnableꢀinputs,ꢀCEꢀandꢀOE.ꢀTheꢀactiveꢀLOWꢀ
WriteꢀEnableꢀ(WE)ꢀcontrolsꢀbothꢀwritingꢀandꢀreadingꢀofꢀtheꢀ
memory.ꢀꢀAꢀdataꢀbyteꢀallowsꢀUpperꢀByteꢀ(UB)ꢀandꢀLowerꢀ
Byteꢀ(LB)ꢀaccess.
•ꢀ Singleꢀpowerꢀsupply
ꢀ —ꢀꢀVddꢀ1.65Vꢀtoꢀ2.2Vꢀ(IS61WV6416DAxx)
ꢀ —ꢀꢀVddꢀ2.4Vꢀtoꢀ3.6Vꢀ(IS61/64WV6416DBxx)
•ꢀ Fullyꢀstaticꢀoperation:ꢀnoꢀclockꢀorꢀrefreshꢀꢀ
required
•ꢀ Threeꢀstateꢀoutputs
•ꢀ Dataꢀcontrolꢀforꢀupperꢀandꢀlowerꢀbytes
•ꢀ IndustrialꢀandꢀAutomotiveꢀtemperatureꢀsupport
•ꢀ Lead-freeꢀavailable
Theꢀ IS61WV6416DAxx/DBxxꢀ andꢀ IS64WV6416DBxxꢀ
areꢀꢀpackagedꢀinꢀtheꢀJEDECꢀstandardꢀ44-pinꢀTSOPꢀTypeꢀ
II,ꢀ 44-pinꢀ 400-milꢀ SOJꢀ ꢀ andꢀ 48-pinꢀ Miniꢀ BGAꢀ (6mmꢀ xꢀ
8mm).
FUNCTIONAL BLOCK DIAGRAM
64K x 16
MEMORY ARRAY
A0-A15
DECODER
VDD
GND
I/O0-I/O7
Lower Byte
I/O
DATA
COLUMN I/O
CIRCUIT
I/O8-I/O15
Upper Byte
CE
OE
WE
CONTROL
CIRCUIT
UB
LB
Copyrightꢀ©ꢀ2010ꢀIntegratedꢀSiliconꢀSolution,ꢀ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.comꢀ
1
Rev. A
11/18/2010