SP3070-3078E中文资料

1Date:03/28/05SP3070E-SP3078EFamily,±15kVESD-Protected,FailsafeRS-485/RS422Transceivers©Copyright2005SipexCorporationSP3070E-SP3078EFamily±15kVESD-Protected,3.3V,1/8Load,FailsafeRS-485/RS422Transceivers®DESCRIPTIONFEATURES■±15kVESDprotectionforRS485pins■3.3Vlow-poweroperation■AdvancedReceiver-failsafeprotectionforopen,shortedorterminatedlines■Upto256TransceiversmayshareBus■Verylowloadfor8xgreaterfanout■HotSwapglitchprotectionREandDE■Thermalshutdownprotectsagainstdrivercontention■Availableinthreeindustrystandardfoot-prints■SP3070E,3073and3076inFull-Duplex(14pin)■SP3071E,3074and3077inFull-Duplex(8pin)■SP3072E,3075and3078inHalf-Duplex(8pin)■Threeapplications-optimizedspeedgrades■SP3070-72E:250kbpsslew-limited■SP3073-75E:500kbpsslew-limited■SP3076-78E:16Mbpshighspeed■SmallformfactorSO-narrowpackages■Industrial(-40to+85ºC)andExtended(-40to+85ºC)temperaturegradesNowAvailableinLeadFreePackaging123456788PINNSOICSP3071ESP3074ESP3077EFullDuplexBROADIGNDZYVCCNCROREDEDIGND14PinNSOICSP3070ESP3073ESP3076EFullDuplexVCCNCABZY12345614131211109NCGND78APPLICATIONS■IndustrialControl,UtilityMetersBuildingAutomation,Instrumentation,PointofSaleTheSP3070-3078EdifferentiallinetransceiversaresuitableforbidirectionalcommunicationonbalancedmultipointbustransmissionlinesandcomplywithbothRS485andRS422EIAStandards.Eachdeviceconsistsofadifferentialdriveranddifferentialreceiver.Alldevicesoperatefroma3.3Vpowersupply.Highreceiverinputimpedanceallowsalargenumberoftransceiverstoshareacommondatabuswhilemaintainingsignalmarginandwithoutexcessiveloadingoruseofexpensiverepeaters.Thehighimpedancedriveroutputismaintainedovertheentirecommon-modevoltagerangefrom-7to+12V.Receiverswillfailsafetologic1outputwheninputsareopen,shortedorterminated.Driversincludebuilt-inshort-circuitprotectionandathermal-overloadshutdowntoprotectagainstexcessivepowerdissipationfrombuscontentionorcablefaults.AllRS485inputsareESDprotectedupto±15kV(Air-GapandHumanBodyModel)andupto±8kVContactdischarge(IEC1000-4-2).123456788PINNSOICSP3072ESP3075ESP3078EHalfDuplexBROAGNDVCCDEDIREDate:03/28/05SP3070E-SP3078EFamily,±15kVESD-Protected,FailsafeRS-485/RS422Transceivers©Copyright2005SipexCorporation2DEVICEARCHITECTUREANDBLOCKDIAGRAMSVCCDRNCABZYRNCNCDEREBGNDGND2134567891011121314DDRABZYRGND21345678DVCCDRABROGND21345678DEVCCREDI14PinFullDuplex:SP3070E,250kbpsslewlimitedSP3073E,500kbpsslewlimitedSP3076E,16Mbps8PinFullDuplex:SP3071E,250kbpsslewlimitedSP3074E,500kbpsslewlimitedSP3077E,16Mbps8PinHalfDuplex:SP3072E,250kbpsslewlimitedSP3075E,500kbpsslewlimitedSP3078E,16MbpsDevicesareavailableinthreeindustrystandardarchitecturesandfootprints.Ineachfootprinttherearethreespeedgradesavailable.3Date:03/28/05SP3070E-SP3078EFamily,±15kVESD-Protected,FailsafeRS-485/RS422Transceivers©Copyright2005SipexCorporationThesearestressratingsonlyandfunctionaloperationofthedeviceattheseratingsoranyotherabovethoseindicatedintheoperationsectionsofthespecificationsbelowisnotimplied.Exposuretoabsolutemaximumratingconditionsforextendedperiodsoftimemayaffectreliability.VCC.....................................................................................................+6.0VInputVoltageatcontrolinputpins(RE,DE).........................-0.3Vto6VDriverInputVoltage(RE,DE)...............................................-0.3Vto6VDriverOutputVoltage(A,B,Y,&Z)....................................-8Vto+13VReceiverInputVoltage(A,B)..............................................-8Vto+13VELECTRICALCHARACTERISTICSABSOLUTEMAXIMUMRATINGSUnlessotherwisenotedVCC=+3.3±0.3V,ambienttemperatureTMINTATMAX.TypicalvaluesareatVCC=3.3,ambienttemperatureTA=+25ºC.The♦denotesthespecificationswhichapplyoverthefulloperatingrangeunlessotherwisenoted.ContinuousPowerDissipationatTa=70oC8-pinSO(derate5.88mW/oCabove+70oC)................................471mW8-pinPDIP(derate9.29mW/oCabove+70oC)............................727mW14-pinSO(derate8.33mW/oCabove+70oC)...........................667mW14-pinPDIP(derate10mW/oCabove+70oC)............................800mWOperatingTemperatureRangesSP307_EMN.................................................................-40ºCto+125ºCSP307_EEN...............................................................-40ºCto+85ºCJunctionTemperature...............................................................+150ºCStorageTemperatureRange..........................................-65ºCto+150ºCLeadTemperature(soldering,10s)...........................................+300ºCRETEMARAP.MYS.NIM.PYT.XAMSTINU♦♦♦♦♦SNOITIDNOCtuptuOrevirDlaitnereffiDVDO2VCCV1erugiF,)224-SR(Ω001=LR5.1VCC1erugiF,)584-SR(Ω45=LRVCC♦♦♦♦♦daoLoNfoedutingaMniegnahCegatloVtuptuOlaitnereffiDV∆DO2.0V♦♦♦♦♦1erugiF,Ω001ro45=LRtuptuOedoMnommoCrevirDegatloVVCOVCC2/3V♦♦♦♦♦1erugiF,Ω001ro45=LRfoedutingaMniegnahCtuptuOedoMnommoCegatloVV∆CO2.0±V1erugiF,Ω001ro45=LRegatloVhgiHtupnIVHI2V♦♦♦♦♦ER,ID,EDegatloVwoLtupnIVLI8.0VER,ID,EDsiseretsyHtupnIVSYH001Vm♦♦♦♦♦ER,ID,EDtnerruCtupnIINI1-1Aµ♦♦♦♦♦ER,ID,EDtsriFecnadepmItupnI)pawstoH(noitisnarT101Ωk♦♦♦♦♦ER,EDeromwardlliwnoitisnarttsriF)pawsto