JEDECSOLIDSTATETECHNOLOGYASSOCIATIONJESD79-3ASeptember2007JEDECSTANDARDDDR3SDRAMSpecification(RevisionofJESD79-3)NOTICEJEDECstandardsandpublicationscontainmaterialthathasbeenprepared,reviewed,andapprovedthroughtheJEDECBoardofDirectorslevelandsubsequentlyreviewedandapprovedbytheJEDEClegalCounsel.JEDECstandardsandpublicationsaredesignedtoservethepublicinterestthrougheliminatingmisunderstandingsbetweenmanufacturersandpurchasers,facilitatinginterchangeabilityandimprovementofproducts,andassistingthepurchaserinselectingandobtainingwithminimumdelaytheproperproductforusebythoseotherthanJEDECmembers,whetherthestandardistobeusedeitherdomesticallyorinternationally.JEDECstandardsandpublicationsareadoptedwithoutregardtowhetherornottheiradoptionmayinvolvepatentsorarticles,materials,orprocesses.BysuchactionJEDECdoesnotassumeanyliabilitytoanypatentowner,nordoesitassumeanyobligationwhatevertopartiesadoptingtheJEDECstandardsorpublications.TheinformationincludedinJEDECstandardsandpublicationsrepresentsasoundapproachtoproductspecificationandapplication,principallyfromthesolidstatedevicemanufacturerviewpoint.WithintheJEDECorganization,thereareprocedureswherebyaJEDECstandardorpublicationmyabefurtherprocessedandultimatelybecomeanANSIstandard.Noclaimstobeinconformancewiththisstandardmaybemadeunlessallrequirementsstatedinthestandardaremet.Inquiries,comments,andsuggestionsrelativetothecontentofthisJEDECstandardorpublicationshouldbeaddressedtoJEDECattheaddressbelow,orcall(703)907-7559or©JEDECSolidStateTechnologyAssociation20072500WilsonBoulevardArlington,VA22201-3834Thisdocumentmaybedownloadedfreeofcharge,howeverJEDECretainsthecopyrightonthismaterial.Bydownloadingthisfiletheindividualagreesnottochargefororreselltheresultingmaterial.Price:PleaserefertothecurrentCatalogofJEDECEngineeringStandardsandPublicationsonlineat!DON’TVIOLATETHELAW!ThisdocumentiscopyrightedbyJEDECandmaynotbereproducedwithoutpermission.Organizationsmayobtainpermissiontoreproducealimitednumberofcopiesthroughenteringintoalicenseagreement.Forinformation,contact:JEDECSolidStateTechnologyAssociation2500WilsonBoulevardArlington,Virginia22201-3834orcall(703)907-7559JEDECStandardNo.79-3AContentsi1Scope..........................................................................................................................................12DDR3SDRAMPackagePinoutandAddressing......................................................................32.1DDR3SDRAMx4BalloutusingMO-207(Topview:seeballsthroughpackage)......32.2DDR3SDRAMx8BalloutusingMO-207(Topview:seeballsthroughpackage).....42.3DDR3SDRAMx16BalloutusingMO-207(Topview:seeballsthroughpackage).....52.4Stacked/dual-dieDDR3SDRAMx4BalloutusingMO-207(Topview:seeballsthroughpackage)..............................................................................................62.5Stacked/dual-dieDDR3SDRAMx8BalloutusingMO-207(Topview:seeballsthroughpackage)..............................................................................................72.6Stacked/dual-dieDDR3SDRAMx16BalloutusingMO-207(Topview:seeballsthroughpackage)..............................................................................................82.7PinoutDescription..............................................................................................................92.8DDR3SDRAMAddressing.............................................................................................112.8.1512Mb.....................................................................................................................112.8.21Gb...........................................................................................................................112.8.32Gb..........................................................................................................................112.8.44Gb..........................................................................................................................112.8.58Gb..........................................................................................................................123FunctionalDescription.............................................................................................................133.1SimplifiedStateDiagram.................................................................................................133.2BasicFunctionality...........................................................................................................143.3RESETandInitializationProcedure................................................................................153.3.1Power-upInitializationSequence.............................................................................153.3.2ResetInitializationwithStablePower.....................................................................173.4RegisterDefinition.................................................................................