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1、DesignCon2010DesignandCharacterizationofa12.8GB/sLowPowerDifferentialMemorySystemforMobileApplicationsDanOh,RambusInc.[doh@rambus.com]SamChang,RambusInc.BrianLeibowitz,RambusInc.MingLi,RambusInc.YohanFrans,RambusInc.ChrisMadden,RambusInc.FredWare,RambusInc.RalfSchmitt,RambusInc.
2、ChuckYuan,RambusInc.Joong-HoKim,RambusInc.NhatNguyen,RambusInc.AbstractThispaperdescribesthedesignandcharacterizationofalowpowerdifferentialmemoryinterfacetargetedformobileapplications.Theinitialdesignofthememoryinterfaceachieves2.7to4.3GB/sdatabandwidthandconsumes3.3mW/Gb/sat4.
3、3GB/soperation.2Thedesignallowstwox16stackedDRAMdiestobefitintoa12x12mmPoPpackage,achievinga12.8GB/saggregateddatabandwidthbasedon3.2Gb/sperpin.Alowswingsignalingbasedonavoltage-modedifferentialdriverisdescribedanditsperformanceisanalyzed.Toevaluatetheimpactoftimingjitterandsyst
4、emnoisetosystemperformance,astatisticallinkmodelingandsimulationmethodologyisemployed.Twotestsystemsarebuiltbasedonwirebond-basedPackage-on-Package(PoP)andBGA-basedChip-to-Chip(C2C)moduletocharacterizethememoryinterfaceperformanceandtovalidatethestatisticallinkmodel.Thecorrelati
5、onresultshowedagoodagreementinsignaleyediagramsandthesystembiterrorrates(BER)betweenmeasurementandsimulation.Author(s)BiographyKyungSuk(Dan)OhisaSeniorPrincipalEngineeratRambusInc.HereceivedtheB.S.,M.S.,andPh.D.inelectricalengineeringfromtheUniversityofIllinois,atUrbana-Champaig
6、nin1990,1992,and1995,respectively.Hisdoctoralresearchwasintheareaofcomputationalelectromagneticsappliedtotransmissionlinemodelingandsimulation.Since2000,heiswithRambusInc.,LosAltos,CA.Duringlastfiveyears,hehadmanagedateamresponsibleforprovidingsignalintegrityanalysisforvariouspr
7、oductsincludingserial,parallel,andmemoryinterfaces.AdditionalresponsibilitiesofhisgroupincludedanadvanceCADtooldevelopmentforhigh-speedlinksimulation.Recently,hebecameatechnicalleadermaintainingthesameresponsibilities.Hiscurrentinterestsincludeadvancesignalandpowerintegritymodel
8、ingandsimulationtechniques,optimizationofchanne
