IS42S16400F
IS45S16400F
1 Meg Bits x 16 Bits x 4 Banks (64-MBIT)
SYNCHRONOUS DYNAMIC RAM
DECEMBER 2011
FEATURES
OVERVIEW
ISSI'sꢀ64MbꢀSynchronousꢀDRAMꢀisꢀorganizedꢀasꢀ1,048,576ꢀ
bitsꢀ xꢀ 16-bitꢀ xꢀ 4-bankꢀ forꢀ improvedꢀ performance.ꢀ Theꢀ
synchronousꢀ DRAMsꢀ achieveꢀ high-speedꢀ dataꢀ transferꢀ
usingꢀpipelineꢀarchitecture.ꢀAllꢀinputsꢀandꢀoutputsꢀsignalsꢀ
referꢀtoꢀtheꢀrisingꢀedgeꢀofꢀtheꢀclockꢀinput.
•ꢀ Clockꢀfrequency:ꢀ200,ꢀ166,ꢀ143,ꢀ133ꢀMHz
•ꢀ Fullyꢀsynchronous;ꢀallꢀsignalsꢀreferencedꢀtoꢀaꢀ
positiveꢀclockꢀedge
•ꢀ Internalꢀbankꢀforꢀhidingꢀrowꢀaccess/precharge
•ꢀ Singleꢀ3.3Vꢀpowerꢀsupply
•ꢀ LVTTLꢀinterface
•ꢀ Programmableꢀburstꢀlengthꢀꢀ
–ꢀ(1,ꢀ2,ꢀ4,ꢀ8,ꢀfullꢀpage)
KEY TIMING PARAMETERS
•ꢀ Programmableꢀburstꢀsequence:ꢀꢀ
Sequential/Interleave
Parameter
-5
-6
-7
Unit
ClkꢀCycleꢀTimeꢀ
ꢀ CASꢀLatencyꢀ=ꢀ3ꢀ
ꢀ CASꢀLatencyꢀ=ꢀ2ꢀ
ꢀꢀ
5ꢀ
7.5ꢀ
ꢀ
6ꢀ
7.5ꢀ
ꢀ
7ꢀ
7.5ꢀ
ꢀ
nsꢀ
ns
•ꢀ Selfꢀrefreshꢀmodes
•ꢀ Autoꢀrefreshꢀ(CBR)
ClkꢀFrequencyꢀ
ꢀ CASꢀLatencyꢀ=ꢀ3ꢀ
ꢀꢀ CASꢀLatencyꢀ=ꢀ2ꢀ
ꢀꢀ
200ꢀ
133ꢀ
ꢀ
ꢀ
ꢀ
•ꢀ 4096ꢀrefreshꢀcyclesꢀeveryꢀ64ꢀmsꢀ(Com,ꢀInd,ꢀA1ꢀ
grade)ꢀorꢀ16msꢀ(A2ꢀgrade)
166ꢀ
133ꢀ
143ꢀ
133ꢀ
Mhzꢀ
Mhz
•ꢀ Randomꢀcolumnꢀaddressꢀeveryꢀclockꢀcycle
AccessꢀTimeꢀꢀfromꢀClockꢀ
ꢀ CASꢀLatencyꢀ=ꢀ3ꢀ
ꢀ CASꢀLatencyꢀ=ꢀ2ꢀ
ꢀ
5ꢀ
6ꢀ
ꢀ
ꢀ
ꢀ
5.4ꢀ
6ꢀ
5.4ꢀ
6ꢀ
nsꢀ
ns
•ꢀ ProgrammableꢀCASꢀlatencyꢀ(2,ꢀ3ꢀclocks)
•ꢀ Burstꢀread/writeꢀandꢀburstꢀread/singleꢀwriteꢀꢀ
operationsꢀcapability
•ꢀ Burstꢀterminationꢀbyꢀburstꢀstopꢀandꢀprechargeꢀ
command
ADDRESS TABLE
OPTIONS
Parameter
4M x 16
•ꢀ Package:ꢀꢀ
Configuration
1M x 16 x 4
banks
54-pinꢀTSOPꢀIIꢀ
54-ballꢀFBGAꢀ(8mmꢀxꢀ8mm)
Refresh Count
•ꢀ OperatingꢀTemperatureꢀRangeꢀ
Commercialꢀ(0oCꢀtoꢀ+70oC)
Industrialꢀ(-40oCꢀtoꢀ+85oC)
AutomotiveꢀGradeꢀA1ꢀ(-40oCꢀtoꢀ+85oC)
AutomotiveꢀGradeꢀA2ꢀ(-40oCꢀtoꢀ+105oC)
ꢀ
Com./Ind. 4K/64ms
A1 4K/64ms
A2 4K/16ms
Row Addresses
A0-A11
Column Addresses
Bank Address Pins
Auto Precharge Pins
A0-A7
BA0, BA1
A10/AP
Copyrightꢀ©ꢀ2011ꢀIntegratedꢀSiliconꢀSolution,ꢀInc.ꢀꢀAllꢀrightsꢀreserved.ꢀꢀISSIꢀreservesꢀtheꢀrightꢀtoꢀmakeꢀchangesꢀtoꢀthisꢀspecificationꢀandꢀitsꢀproductsꢀatꢀanyꢀtimeꢀwithoutꢀnotice.ꢀꢀꢀISSIꢀassumesꢀnoꢀ
liabilityꢀarisingꢀoutꢀofꢀtheꢀapplicationꢀorꢀuseꢀofꢀanyꢀinformation,ꢀproductsꢀorꢀservicesꢀdescribedꢀherein.ꢀCustomersꢀareꢀadvisedꢀtoꢀobtainꢀtheꢀlatestꢀversionꢀofꢀthisꢀdeviceꢀspecificationꢀbeforeꢀrelyingꢀonꢀ
anyꢀpublishedꢀinformationꢀandꢀbeforeꢀplacingꢀordersꢀforꢀproducts.ꢀꢀ
IntegratedꢀSiliconꢀSolution,ꢀInc.ꢀdoesꢀnotꢀrecommendꢀtheꢀuseꢀofꢀanyꢀofꢀitsꢀproductsꢀinꢀlifeꢀsupportꢀapplicationsꢀwhereꢀtheꢀfailureꢀorꢀmalfunctionꢀofꢀtheꢀproductꢀcanꢀreasonablyꢀbeꢀex-
pectedꢀtoꢀcauseꢀfailureꢀofꢀtheꢀlifeꢀsupportꢀsystemꢀorꢀtoꢀsignificantlyꢀaffectꢀitsꢀsafetyꢀorꢀeffectiveness.ꢀProductsꢀareꢀnotꢀauthorizedꢀforꢀuseꢀinꢀsuchꢀapplicationsꢀunlessꢀIntegratedꢀSiliconꢀ
Solution,ꢀInc.ꢀreceivesꢀwrittenꢀassuranceꢀtoꢀitsꢀsatisfaction,ꢀthat:
a.)ꢀtheꢀriskꢀofꢀinjuryꢀorꢀdamageꢀhasꢀbeenꢀminimized;
b.)ꢀtheꢀuserꢀassumeꢀallꢀsuchꢀrisks;ꢀand
c.)ꢀpotentialꢀliabilityꢀofꢀIntegratedꢀSiliconꢀSolution,ꢀIncꢀisꢀadequatelyꢀprotectedꢀunderꢀtheꢀcircumstances
Integrated Silicon Solution, Inc. — www.issi.com ꢀ
1
Rev. I
12/01/2011