max232英文资料



 SLLS047L−FEBRUARY1989−REVISEDMARCH20041POSTOFFICEBOX655303•DALLAS,TEXAS75265
MeetsorExceedsTIA/EIA-232-FandITURecommendationV.28
OperatesFromaSingle5-VPowerSupplyWith1.0-
FCharge-PumpCapacitors
OperatesUpTo120kbit/s
TwoDriversandTwoReceivers
±30-VInputLevels
LowSupplyCurrent...8mATypical
ESDProtectionExceedsJESD22−2000-VHuman-BodyModel(A114-A)
UpgradeWithImprovedESD(15-kVHBM)and0.1-
FCharge-PumpCapacitorsisAvailableWiththeMAX202
Applications−TIA/EIA-232-F,Battery-PoweredSystems,Terminals,Modems,andComputersdescription/orderinginformationTheMAX232isadualdriver/receiverthatincludesacapacitivevoltagegeneratortosupplyTIA/EIA-232-Fvoltagelevelsfromasingle5-Vsupply.EachreceiverconvertsTIA/EIA-232-Finputsto5-VTTL/CMOSlevels.Thesereceivershaveatypicalthresholdof1.3V,atypicalhysteresisof0.5V,andcanaccept±30-Vinputs.EachdriverconvertsTTL/CMOSinputlevelsintoTIA/EIA-232-Flevels.Thedriver,receiver,andvoltage-generatorfunctionsareavailableascellsintheTexasInstrumentsLinASIClibrary.ORDERINGINFORMATIONTAPACKAGE†ORDERABLEPARTNUMBERTOP-SIDEMARKINGPDIP(N)Tubeof25MAX232NMAX232NSOIC(D)Tubeof40MAX232DMAX2320°Cto70°CSOIC(D)Reelof2500MAX232DRMAX2320°Cto70°CSOIC(DW)Tubeof40MAX232DWMAX232SOIC(DW)Reelof2000MAX232DWRMAX232SOP(NS)Reelof2000MAX232NSRMAX232PDIP(N)Tubeof25MAX232INMAX232INSOIC(D)Tubeof40MAX232IDMAX232I−40°Cto85°CSOIC(D)Reelof2500MAX232IDRMAX232I−40Cto85CSOIC(DW)Tubeof40MAX232IDWMAX232ISOIC(DW)Reelof2000MAX232IDWRMAX232I†Packagedrawings,standardpackingquantities,thermaldata,symbolization,andPCBdesignguidelinesareavailableat2004,TexasInstrumentsIncorporated !#$%&!'#('!!$#!!$#)###*#''+,('!$!#-'##!#&,!&'##-&&$##(Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.LinASICisatrademarkofTexasInstruments.12345678161514131211109C1+VS+C1−C2+C2−VS−T2OUTR2INVCCGNDT1OUTR1INR1OUTT1INT2INR2OUTMAX232...D,DW,N,ORNSPACKAGEMAX232I...D,DW,ORNPACKAGE(TOPVIEW)

 SLLS047L−FEBRUARY1989−REVISEDMARCH20042POSTOFFICEBOX655303•DALLAS,TEXAS75265FunctionTablesEACHDRIVERINPUTTINOUTPUTTOUTLHHLH=highlevel,L=lowlevelEACHRECEIVERINPUTRINOUTPUTROUTLHHLH=highlevel,L=lowlevellogicdiagram(positivelogic)T1INT1OUTR1INR1OUTT2INT2OUTR2INR2OUT1110129147138

 SLLS047L−FEBRUARY1989−REVISEDMARCH20043POSTOFFICEBOX655303•DALLAS,TEXAS75265absolutemaximumratingsoveroperatingfree-airtemperaturerange(unlessotherwisenoted)†Inputsupplyvoltagerange,VCC(seeNote1)−0.3Vto6V..........................................Positiveoutputsupplyvoltagerange,VS+VCC−0.3Vto15V.......................................Negativeoutputsupplyvoltagerange,VS−−0.3Vto−15V..........................................Inputvoltagerange,VI:Driver−0.3VtoVCC+0.3V................................................Receiver±30V...........................................................Outputvoltagerange,VO:T1OUT,T2OUTVS−−0.3VtoVS++0.3V................................R1OUT,R2OUT−0.3VtoVCC+0.3V....................................Short-circuitduration:T1OUT,T2OUTUnlimited...................................................Packagethermalimpedance,θJA(seeNotes2and3):Dpackage73°C/W............................DWpackage57°C/W..........................Npackage67°C/W............................NSpackage64°C/W...........................Operatingvirtualjunctiontemperature,TJ150°C...................................................Storagetemperaturerange,Tstg−65°Cto150°C..................................................†Stressesbeyondthoselistedunder“absolutemaximumratings”maycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder“recommendedoperatingconditions”isnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.NOTES:1.AllvoltagesarewithrespecttonetworkGND.2.MaximumpowerdissipationisafunctionofTJ(max),θJA,andTA.ThemaximumallowablepowerdissipationatanyallowableambienttemperatureisPD=(TJ(max)−TA)/θJA.OperatingattheabsolutemaximumTJof150°Ccanaffectreliability.3.ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51-7.recommendedoperatingconditionsMINNOMMAXUNITVCCSupplyvoltage4.555.5VVIHHigh-levelinputvoltage(T1IN,T2IN)2VVILLow-levelinputvoltage(T1IN,T2IN)0.8VR1IN,R2INReceiverinputvoltage±30VTAOperatingfree-airtemperatureMAX232070°CTAOperatingfree-airtemperatureMAX232I−4085°Celectricalcharacteristicsoverrecommendedrangesofsupplyvoltageandoperatingfree-airtemperature(unlessotherwisenoted)(seeNote4andFigure4)PARAMETERTESTCONDITIONSMINTYP‡MAXUNITICCSupplycurrentVCC=5.5V,TA=25°CAlloutputsopen,810mA‡AlltypicalvaluesareatVCC=5VandTA=25°C.NOTE4:TestconditionsareC1−C4=1µFatVCC=5V±0.5V.