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S3620A–DECEMBER2004–REVISEDFEBRUARY20108-BITUNIVERSALBUSTRANSCEIVERANDTWO1-BITBUSTRANSCEIVERSWITHSPLITLVTTLPORT,FEEDBACKPATH,AND3-STATEOUTPUTSCheckforSamples:SN74VMEH22501AFEATURESMemberoftheTexasInstrumentsWidebus™FamilyUBT™TransceiverCombinesD-TypeLatchesandD-TypeFlip-FlopsforOperationinTransparent,Latched,orClockedModesOEC™CircuitryImprovesSignalIntegrityandReducesElectromagneticInterference(EMI)CompliantWithVME64,2eVME,and2eSSTProtocolsBusTransceiverSplitLVTTLPortProvidesaFeedbackPathforControlandDiagnosticsMonitoringI/OInterfacesAre5-VTolerantB-PortOutputs(–48mA/64mA)YandA-PortOutputs(–12mA/12mA)Ioff,Power-Up3-State,andBIASVCCSupportLiveInsertionBusHoldon3A-PortDataInputs26-ΩEquivalentSeriesResistoron3APortsandYOutputsFlow-ThroughArchitectureFacilitatesPrintedCircuitBoardLayoutDistributedVCCandGNDPinsMinimizeHigh-SpeedSwitchingNoiseLatch-UpPerformanceExceeds100mAPerJESD78,ClassII•ESDProtectionExceedsJESD22–2000-VHuman-BodyModel(A114-A)–200-VMachineModel(A115-A)–1000-VCharged-DeviceModel(C101)DGGORDGVPACKAGE(TOPVIEW)••••••••••••••DESCRIPTION/ORDERINGINFORMATIONTheSN74VMEH22501A8-bituniversalbustransceiv™transceiverallowstransparent,latched,andflip-flopmodesofdatatransfer,andtheseparateLVTTLinputandoutputsonthebustraviceprovidesahigh-speedinterfacebetweencardsoperatingatLVTTLlogiclevelsandVME64,VME64x,orVME320(1)74VMEH22501Aispin-for-pincapatibletotheSN74VMEH22501(TIliteraturenumberSCES357),butoperatesatawideroperatingtemperature(−40°Cto85°C)range.(1)VME320isapatentedbackplaneconstructionbyArizonaDigital,beawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemicondutsconformtght©2004–2010,TexasInstrumentsIncorporated/SN74VMEH22501ASCES3620A–DECEMBER2004–CRIPTION/ORDERINGINFORMATION(CONTINUED)High-speedbackplaneoperationisadirectresultoftheimprovedOEC™circuitryandh-portI/Osareoptimizedfordrivinglargecapacitiveloadsandincludepseudo-ETLinputthresholds(½VCC±50mV)pecificationssupportthe2eVMEprotocolsinVME64x(ANSI/VITA1.1)operdesignofa21-slotVMEsystem,adesignercanachieve320-Mbytetransferratesonlinearbackplanesand,possibly,utsbus-ho-holdcircuitryisnotprovidedon1Aor2Ainputs,anyB-portinput,uviceisfullyspecifiedforlive-insertionapplicationsusingIoff,power-up3-state,fcircuitrypreventsdamagingcurrenttobackflowthroughthedevicewhenitispoweredoff/er-up3-statecircuitryplacestheoutputsinthehigh-impedancestateduringpowerupandpowerdown,SVCCcircuitryprechargesandpreconditionstheB-portinput/outputconnections,preventingdisturbanceofactivedataonthebackplaneduringcardinsertionorremoval,Cisbetween0and1.5V,r,toensurethehigh-impedancestateabove1.5V,output-enable(OEandOEBY)inputsshouldbetiedtoVCCthroughapullupresistorandoutput-enable(OEAB)inputsshouldbetiedtoGNDthroughapulldownresistor;theminimumvalueoftheresistorNGINFORMATIONTAPACKAGEBGAMicroStar™Junior–ZQL–40°Cto85°CTSSOP–DGGTVSOP–DGVVFBGA–GQL(1)(1)ORDERABLEPARTNUMBERSN74VMEH22501AZQLRSN74VMEH22501ADGGRSN74VMEH22501ADGVRSN74VMEH22501AGQLRTOP-SIDEMARKINGVK501AVMEH22501AVK501AVK501ATapeandreelTapeandreelTapeandreelTapeandreelPackagedrawings,thermaldata,/sc/packaging.2SubmitDocumentationFeedbackCopyright©2004–2010,TexasInstrumentsIncorporatedProductFolderLink(s):SN74VMEH22501A/S3620A–DECEMBER2004–REVISEDFEBRUARY2010GQLORZQLPACKAGE(TOPVIEW)TERMINALASSIGNMENTS(1)1ABCDEFGHJK(1)1OEBY1Y2Y3A13A23A33A43A53A7DIR2NC1A2A2OEBYLEOECLKBA3A63A8NCGNDVCCGNDNCGNDVCCGNDNC3NCGNDVCCGND4NCGNDVCCGND5NCVCCBIASVCC2OEABVCCVCCCLKAB3B63B8NC61OEAB1B2B3B13B23B33B43B53B7VCCNC-NointernalconnectionCopyright©2004–2010,TexasInstrumentsIncorporatedSubmitDocumentationFeedback3ProductFolderLink(s):SN74VMEH22501A/SN74VMEH22501ASCES3620A–DECEMBER2004–CTIONALDESCRIPTIONTheSN74VMEH22501Aisahigh-drive(–48/64mA),8-bitUBTtransceivercontainingD-typelatchesandD-typeflip-flopsfordata-pathoperationintransparent,latched,iceisuniquelypartitionedas8-bionalDescriptionforTwo1-BABishigh,ABislow,te1Aand2Ainputsand1YandBYislow,BYishigh,YandOEABinputscanbetiedtogethertoformasimpledirectioncontrolwhereaninputhighyieldsAdatatoBbusandaninputlowyieldsBdatatoYbus.1-BITBUSTRANSCEIVERFUNCTIONTABLEINPUTSOEABLHLHOEBYHHLLOUTPUTZAdatatoBbusBdatatoYbusAdatatoBbus,BdatatoYbusMODEIsolationTruedriverTruedriverwithfeedbackpathFunctionalDescriptionfor8-BitUBTTransceiverThe3Aand3BdataflowineachdirectioniscontrolledbytheOEanddirection-control(DIR)islow,ishigh,ONTABLEINPUTSOEHLLDIRXHLOUTPUTZ3Adatato3Bbus3Bdatato3AbusTheUBTtransceiverfunctionsarecontrolledbylatch-enable(LE)andclock(CLKABandCLKBA)3A-to-3Bdataflow,islow,low,the3Adataisstoredinthelatch/transceiverdataflowfor3Bto3Aissimilartothatof3Ato3B,butusesCLKBA.4SubmitDocumentationFeedbackCopyright©2004–2010,TexasInstrumentsIncorporatedProductFolderLink(s):SN74VMEH22501A/S3620A–DECEMBER2004–NSCEIVERFUNCTIONTABLE(1)INPUTSOEHLLLLLL(1)(2)(3)LEXLLHHLLCLKABXHLXX↑↑3AXXXLHLHOUTPUT3BZB0B0(2)(3)MODEIsolationLatchedstorageof3AdataTruetransparentClockedstorageof3AdataLHLH3A-to-3Bdataflowisshown;3B-to-3Adataflowissimilar,levelbeforetheindicatedsteady-stateinputconditionswereestablished,providedthatCLKABwashighbeforeLEwentlowOutputlevelbeforetheindicatedsteady-stateinputconditionswereestab74VMEH22501AUBTTransceiverReplacementFunctionsFUNCTIONTransceiverBuffer/driverLatchedtransceiverLatchRegisteredtransceiverFlip-flop8BIT'245,'623,'645'241,'244,'541'543'373,'573'646,'652'374,'574SN74VMEH22501AUBTtransceiverreplacesallabovefunctionsCopyright©2004–2010,TexasInstrumentsIncorporatedSubmitDocumentationFeedback5ProductFolderLink(s):SN74VMEH22501A/SN74VMEH22501ASCES3620A–DECEMBER2004–ICDIAGRAM(POSITIVELOGIC)1OEAB4811OEBY2461A1Y2OEAB1B3412OEBY852A2Y6432BOE14DIR24CLKABLE321117CLKBA3A191DC1CLK1DC1CLK403B1To Seven Other ChannelsPin numbers shown are for the DGG and DGV packages.6SubmitDocumentationFeedbackCopyright©2004–2010,TexasInstrumentsIncorporatedProductFolderLink(s):SN74VMEH22501A/S3620A–DECEMBER2004–REVISEDFEBRUARY2010AbsoluteMaximumRatings(1)overoperatingfree-airtemperaturerange(unlessotherwisenoted)MINVCC,BIASVCCVIVOVOIOIOIIKIOKqJATstg(1)(2)(3)SupplyvoltagerangeInputvoltagerange(2)Voltagerangeappliedtoanyoutputinthehigh-impedanceorpower-offstate(2)Voltagerangeappliedtoanyoutputinthehighorlowstate(2)OutputcurrentinthelowstateOutputcurrentinthehighstateInputclampcurrentOutputclampcurrentPackagethermalimpedance(3)Storagetemperaturerange3AportorYoutputBport3AportorYoutputBport3AportorYoutputBportVI<0VO<0orVO>VCC,BportDGGpackageDGVpackageGQL/ZQLpackage–65–0.5–0.5–0.5–0.5–0.5MAX4.677VCC+0.54.650100–50–100–50–5°C°C/WUNITVVVVmAmAmAmAStressesbeyondthoselistedunder"absolutemaximumratings"restressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder"recommendedoperatingconditions"retoabsolute-maxiutandoutputnegative-voltageratingskagethermalimpedanceiscalculatedinaccordancewithJESD51-7.(2)RecommendedOperatingConditions(1)VCC,BIASVCCVIVIHVILIIKIOHIOLΔt/ΔvΔt/ΔVCCTA(1)(2)SupplyvoltageInputvoltageHigh-levelinputvoltageLow-levelinputvoltageInputclampcurrentHigh-leveloutputcurrentLow-leveloutputcurrentInputtransitionriseorfallratePower-upramprateOperatingfree-airtemperatureMIN3.15ControlinputsorAportBportControlinputsorAportBportControlinputsorAportBport3AportandYoutputBport3AportandYoutputBportOutputsenabled20–4020.5VCC+50mVNOM3.3VCCVCCMAX3.455.55.5UNITVVV0.80.5VCC–50mV–18–12–4812641085VmAmAmAns/Vms/V°CAllunusedcontrolinpotheTIapplicationreport,ImplicationsofSloworFloatingCMOSInputs,connectionsequenceforuseoftheB-portI/OprechargefeatureisGNDandBIASVCC=3.3Vfirst,I/Osecond,andVCC=3.3Vlast,becaustrolinputscanbeconnectedatanytime,butnormallyareconnectedduringtheI/-portprechargeisnotrequired,anyconnectionsequenceisacceptable,butgenerally,ght©2004–2010,TexasInstrumentsIncorporatedSubmitDocumentationFeedback7ProductFolderLink(s):SN74VMEH22501A/SN74VMEH22501ASCES3620A–DECEMBER2004–ctricalCharacteristicsoverrecommendedoperatingfree-airtemperaturerangeforAandBports(unlessotherwisenoted)PARAMETERVIK3Aport,anyBports,andYoutputsVOH3AportandYoutputsAnyBport3Aport,anyBports,andYoutputs3AportandYoutputsVOLAnyBportControlinputs,1Aand2A(2)TESTCONDITIONSVCC=3.15V,VCC=3.15Vto3.45V,VCC=3.15VVCC=3.15VVCC=3.15Vto3.45V,VCC=3.15VII=–18mAIOH=–100mAIOH=–6mAIOH=–12mAIOH=–24mAIOH=–48mAIOL=100mAIOL=6mAIOL=12mAIOL=24mAVCC=3.15VVCC=3.45V,VCC=0or3.45V,VCC=3.45V,VCC=3.45V,VCC=0,BIASVCC=0,IOL=48mAIOL=64mAVI=VCCorGNDVI=5.5VVO=VCCor5.5VVO=GNDVIorVO=0to5.5VVI=0.8VVI=2VVI=0toVCCVI=0toVCCMINTYP(1)MAX–1.2VCC–0.22.422.420.20.550.80.40.550.6±155–5–20±1075–75500–500±10UNITVVVIIIOZHIOZLIoffIBHLIBHH(3)(4)(5)(6)mAmAmAmAmAmAmAmAmA3Aport,anyBport,andYoutputs3AportandYoutputsAnyBport3Aport3Aport3Aport3Aport(7)(2)VCC=3.15V,VCC=3.15V,VCC=3.45V,VCC=3.45V,VCC≤1.5V,VO=0.5VtoVCC,VI=GNDorVCC,OE=don'tcareIBHLOIBHHOIOZ(PU/PD)OutputshighICCVCC=3.45V,IO=0,VI=VCCorGNDVCC=3.45V,IO=0,VI=VCCorGND,Onedatainputswitchingatone-halfclockfrequency,50%dutycycle(8)3030307619mA/clockMHz/input750mAmAOutputslowOutputsdisabledOutputsenabledOutputsdisabledICCDΔICC(1)(2)(3)(4)(5)(6)(7)(8)VCC=3.15Vto3.45V,OneinputatVCC–0.6V,OtherinputsatVCCorGNDAlltypicalvaluesareatVCC=3.3V,TA=25°/Oports,-ouldbemeasuredafterloweringVINtoGND,-holouldbemeasuredafterraisingVINtoVCC,-impedancestateduringpoweruporpowerdownThisistheincreaseinsupplycurrentforeachinputthatisatthespecifiedTTLvoltagelevel,ratherthanVCCorGND.8SubmitDocumentationFeedbackCopyright©2004–2010,TexasInstrumentsIncorporatedProductFolderLink(s):SN74VMEH22501A/S3620A–DECEMBER2004–REVISEDFEBRUARY2010ElectricalCharacteristics(continued)overrecommendedoperatingfree-airtemperaturerangeforAandBports(unlessotherwisenoted)PARAMETERCiCoCio1Aand2AinputsControlinputs1Yor2Youtputs3AportAnyBportVI=3.15Vor0VO=3.15Vor0VCC=3.3V,VO=3.3Vor0TESTCONDITIONSMINTYP(1)MAX2.82.65.67.91112.5UNITpFpFpFLive-InsertionSpecificationsoverrecommendedoperatingfree-airtemperaturerangeforBportPARAMETERICC(BIASVCC)VOIO(1)(2)VCC=0to3.15V,VCC=3.15Vto3.45V(2),VCC=0,VCC=0TESTCONDITIONSBIASVCC=3.15Vto3.45V,BIASVCC=3.15Vto3.45V,BIASVCC=3.15Vto3.45VVO=0,VO=3V,BIASVCC=3.15VBIASVCC=3.15VIO(DC)=0IO(DC)=01.3–20201.5MINTYP(1)MAX5101.7–100100UNITmAmAVmAAlltypicalvaluesareatVCC=3.3V,TA=25°–0.5V