初中数学易错题

(BOTTOMVIEW)4321BAC1413121110981234567OERGYPACKAGE(TOPVIEW)1147823456131211109B1B2B3B4NCA1A2A3A4NCOEVGNDCCBNC−NointernalconnectionDORPWPACKAGE(TOPVIEW)NC−NointernalconnectionGNDNCA4A3A2VCCANCB4B3B2B1VCCBA1VCCADESCRIPTION/ORDERINGINFORMATIONTXB01044-BITBIDIRECTIONALVOLTAGE-LEVELTRANSLATORWITHAUTODIRECTIONSENSINGAND±15-kVESDPROTECTIONSCES650–APRIL2006•1.2Vto3.6VonAPortand1.65Vto5.5Von•ESDProtectionExceedsJESD22BPort(VCCA≤VCCB)–APort•VCCIsolationFeature–IfEitherVCCInputIs•2500-VHuman-BodyModel(A114-B)atGND,AllOutputsAreinthe•200-VMachineModel(A115-A)High-ImpedanceState•1500-VCharged-DeviceModel(C101)•OEInputCircuitReferencedtoVCCA–BPort•LowPowerConsumption,4-μAMaxICC•±15-kVHuman-BodyModel(A114-B)•IoffSupportsPartial-Power-DownMode•200-VMachineModel(A115-A)Operation•1500-VCharged-DeviceModel(C101)•Latch-UpPerformanceExceeds100mAPerJESD78,ClassIITERMINALASSIGNMENTS(GXU/ZXUPackage)ABC1A1VCCBB12A2VCCAB23A3OEB34A4GNDB4This4-bitnoninvertingtranslatorusestwoseparateconfigurablepower-supplyrails.TheAportisdesignedtotrackVCCA.VCCAacceptsanysupplyvoltagefrom1.2Vto3.6V.TheBportisdesignedtotrackVCCB.VCCBacceptsanysupplyvoltagefrom1.65Vto5.5V.Thisallowsforuniversallow-voltagebidirectionaltranslationbetweenanyofthe1.2-V,1.5-V,1.8-V,2.5-V,3.3-V,and5-Vvoltagenodes.VCCAshouldnotexceedVCCB.Whentheoutput-enable(OE)inputislow,alloutputsareplacedinthehigh-impedancestate.TheTXB0104isdesignedsothattheOEinputcircuitissuppliedbyVCCA.Thisdeviceisfullyspecifiedforpartial-power-downapplicationsusingIoff.TheIoffcircuitrydisablestheoutputs,preventingdamagingcurrentbackflowthroughthedevicewhenitispowereddown.Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.PRODUCTIONDATAinformationiscurrentasofpublicationdate.Copyright©2006,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.(CONTINUED)TXB01044-BITBIDIRECTIONALVOLTAGE-LEVELTRANSLATORWITHAUTODIRECTIONSENSINGAND±15-kVESDPROTECTIONSCES650–APRIL2006Toensurethehigh-impedancestateduringpoweruporpowerdown,OEshouldbetiedtoGNDthroughapulldownresistor;theminimumvalueoftheresistorisdeterminedbythecurrent-sourcingcapabilityofthedriver.ORDERINGINFORMATIONTAPACKAGE(1)ORDERABLEPARTNUMBERTOP-SIDEMARKINGUFBGA–GXUTXB0104GXURTapeandreel____UFBGA–ZXU(Pb-Free)TXB0104ZXUR–40°Cto85°CQFN–RGYTapeandreelTXB0104RGYRSOIC–DTapeandreelTXB0104DRTSSOP–PWTapeandreelTXB0104PWR(1)Packagedrawings,standardpackingquantities,thermaldata,symbolization,andPCBdesignguidelinesareavailableat≤VCCA≤3.6VandVCCA≤VCCB.2A1A1Input/output1.ReferencedtoVCCA.3A2A2Input/output2.ReferencedtoVCCA.4A3A3Input/output3.ReferencedtoVCCA.5A4A4Input/output4.ReferencedtoVCCA.6NCNoconnection.Notinternallyconnected.7B4GNDGround3-stateoutput-modeenable.PullOElowtoplacealloutputsin8B3OE3-statemode.ReferencedtoVCCA.9NCNoconnection.Notinternallyconnected.10C4B4Input/output4.ReferencedtoVCCB.11C3B3Input/output3.ReferencedtoVCCB.12C2B2Input/output2.ReferencedtoVCCB.13C1B1Input/output1.ReferencedtoVCCB.14B1VCCBB-portsupplyvoltage1.65V≤VCCB≤5.5V.2SubmitDocumentationFeedback(1)RecommendedOperatingConditions(1)(2)TXB01044-BITBIDIRECTIONALVOLTAGE-LEVELTRANSLATORWITHAUTODIRECTIONSENSINGAND±15-kVESDPROTECTIONSCES650–APRIL2006overoperatingfree-airtemperaturerange(unlessotherwisenoted)MINMAXUNITVCCA–0.54.6SupplyvoltagerangeVVCCB–0.56.5VIInputvoltagerange(2)–0.56.5VVOVoltagerangeappliedtoanyoutputinthehigh-impedanceorpower-offstate(2)–0.56.5VAport–0.5VCCA+0.5VOVoltagerangeappliedtoanyoutputinthehighorlowstate(2)(3)VBport–0.5VCCB+0.5IIKInputclampcurrentVI0–50mAIOKOutputclampcurrentVO0–50mAIOContinuousoutputcurrent±50mAContinuouscurrentthroughVCCA,VCCB,orGND±100mADpackage(4)86GXU/ZXUpackage(4)TBDθJAPackagethermalimpedance°C/WPWpackage(4)113RGYpackage(5)47TstgStoragetemperaturerange–65150°C(1)Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderrecommendedoperatingconditionsisnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.(2)Theinputandoutputnegative-voltageratingsmaybeexceedediftheinputandoutputcurrentratingsareobserved.(3)ThevalueofVCCAandVCCBareprovidedintherecommendedoperatingconditionstable.(4)ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51-7.(5)ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51-5.VCCAVCCBMINMAXUNITVCCA1.23.6SupplyvoltageVVCCB1.655.5Datainputs1.2Vto3.6V1.65Vto5.5VVCCI×0.65(3)VCCIVIHHigh-levelinputvoltageVOE1.2Vto3.6V1.65Vto5.5VVCCA×0.655.5Datainputs1.2Vto5.5V1.65