Datasheet-RTL8672-v04-preliminary

IntegratedADSL2+RouterControlleriTrackID:xxxx-nnnn-nnRev.0.4RTL8672IntegratedADSL2+RouterControllerDatasheetRev.0.46May,2008TrackID:xxxx-nnnn-nnRTL8672DatasheetIntegratedADSL2+RouterControlleriiTrackID:xxxx-nnnn-nnRev.0.4COPYRIGHT©2003RealtekSemiconductorCorp.Allrightsreserved.Nopartofthisdocumentmaybereproduced,transmitted,transcribed,storedinaretrievalsystem,ortranslatedintoanylanguageinanyformorbyanymeanswithoutthewrittenpermissionofRealtekSemiconductorCorp.DISCLAIMERRealtekprovidesthisdocument“asis”,withoutwarrantyofanykind,neitherexpressednorimplied,including,butnotlimitedto,theparticularpurpose.Realtekmaymakeimprovementsand/orchangesinthisdocumentorintheproductdescribedinthisdocumentatanytime.Thisdocumentcouldincludetechnicalinaccuraciesortypographicalerrors.TRADEMARKSRealtekisatrademarkofRealtekSemiconductorCorporation.Othernamesmentionedinthisdocumentaretrademarks/registeredtrademarksoftheirrespectiveowners.CONFIDENTIALITYThisdocumentisconfidentialandshouldnotbeprovidedtoathird-partywithoutthepermissionofRealtekSemiconductorCorporation.USINGTHISDOCUMENTThisdocumentisintendedforthesoftwareengineer’sreferenceandprovidesdetailedprogramminginformation.Thougheveryefforthasbeenmadetoensurethatthisdocumentiscurrentandaccurate,moreinformationmayhavebecomeavailablesubsequenttotheproductionofthisguide.Inthatevent,pleasecontactyourRealtekrepresentativeforadditionalinformationthatmayhelpinthedevelopmentprocess.REVISIONHISTORYRevisionReleaseDateSummary0.02008/01/18Firstrelease.0.12008/01/23nCorrectingpin113as‘OVDD’nBlockdiagramadded0.22008/01/30nCorrectingpin12as‘VSS’0.32008/01/31nCorrectingpolarityof‘U1ID’0.42008/05/06n‘U1ID’shouldbeinputonly,notI/ORTL8672DatasheetIntegratedADSL2+RouterControlleriiiTrackID:xxxx-nnnn-nnRev.0.4TableofContents1.GENERALDESCRIPTION............................................................................................................................12.FEATURES......................................................................................................................................................23.SYSTEMAPPLICATIONS.............................................................................................................................24.BLOCKDIAGRAM.........................................................................................................................................35.PINASSIGNMENTS.......................................................................................................................................46.PINDESCRIPTIONS......................................................................................................................................57.SYSTEMOVERVIEW....................................................................................................................................98.ELECTRICALREQUIREMENTS...............................................................................................................108.1.DCCHARACTERISTICS.............................................................................................................................................108.1.1.AbsoluteMaximumRating...........................................................................................................................108.1.2.RecommendedOperationConditions..............................................................................................................108.1.3.PowerConsumption.....................................................................................................................................108.1.4.ReferenceCrystal.........................................................................................................................................118.1.5.VREFInput.......................................................................................................................................................118.2.ACCHARACTERISTICS..............................................................................................................................................118.2.1.FLASH–Parallel...........................................................................................................................................118.2.2.FLASH–Serial..............................................................................................................................................128.2.3.SDRAM...........................................................................................................................................................128.2.3.1SDRAMInputTiming....................................................................................................................................128.2.3.2SDRAMOutputTiming.................................................................................................................................138.2.3.3SDRAMAccessControlTiming...........................................................................................