1 Features 2 Applications 3 Description - TI.com

1 V, 5 VDINROUTDOUTRS232 RINRS2323355 FORCEONFORCEOFFSTATUSINVALIDP roductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityMAX3243 SLLS350O APRIL1999 REVISEDJANUARY2015 MAX32433-V to MultichannelRS-232 Line Driver/ReceiverWith 15-kV ESD (HBM)Protection1 Features2 Applications1 OperatesWith3-V to Battery-PoweredSystems Single-Chipand Single-SupplyInterface Tabletsfor IBM PC/AT SerialPort Notebooks RS-232 Bus-PinESDP rotectionof Laptops 15 kV UsingHuman-BodyModel(HBM) Hand-HeldEquipment Meetsor Exceedsthe RequirementsofTIA/EIA-232-Fand ITU Description ThreeDriversand Five ReceiversThe MAX3243deviceconsistsof threeline drivers,fivelinereceiverswhichis idealfor DE-9 DTE OperatesUp To 250 kbit/sinterface. 15-kVESD(HBM)protectionpin to pin Low ActiveCurrent:300 A Typical(serial-port connectionpins,includingGND).Flexible Low StandbyCurrent:1 A INVALIDare alwaysenabledto ExternalCapacitors:4 Fallowcheckingfor ringindicatorandvalidRS232 Accepts5-V Always-ActiveNoninvertingReceiverOutput( ROUT2B)DeviceInformation(1) OperatingTemperaturePARTNUMBERPACKAGE(PI N)BODYSIZE MAX3243C:0 C to 70 CSSOP(28) (28) MAX3243I.

2 40 C to 85 CTSSOP(28) Serial-MouseDriveability(1) For all availablepackages,see the orderableaddendumat Auto-PowerdownFeatureto DisableDriverthe end of the ValidRS-232 SignalIsSensed4 SimplifiedDiagram1An IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand APRIL1999 Contents1 Pin Configurationand Applicationand Deviceand Mechanical,Packaging,and RevisionHistoryChangesfromRevisionN (May2009)to RevisionOPage AddedApplications,DeviceInformationtable ,PinFunctionstable,ESDR atingstable,ThermalInformationtable,Typi calCharacteristics,FeatureDescriptionsec tion,DeviceFunctionalModes,Applicationan dImplementationsection,PowerSupplyRecomm endationssection,Layoutsection,Deviceand DocumentationSupportsection,andMechanica l,Packaging, 1999 2015,TexasInstrumentsIncorporatedProduct FolderLinks:MAX3243123456789101112131428 27262524232221201918171615C2+C2 V RIN1 RIN2 RIN3 RIN4 RIN5 DOUT1 DOUT2 DOUT3 DIN3 DIN2 DIN1C1+V+VCCGNDC1 FORCEONFORCEOFFINVALIDROUT2 BROUT1 ROUT2 ROUT3 ROUT4 ROUT5DB, DW, OR PW PACKAGE(TOP VIEW) APRIL1999 REVISEDJANUARY20156 Pin Configurationand FunctionsPin +1 Positivelead of C2 capacitorC2 2 Negativelead of C2 capacitorV 3 ONegativechargepumpoutputfor storagecapacitoronlyRIN1.

3 RIN54, 5, 6, 7, 8 IRS232line datainput(fromremoteRS232system)DOUT1:DO UT39, 10, 11 ORS232line dataoutput(to remoteRS232system)DIN3:DIN112, 13, 14 ILogicdatainput(fromUART)ROUT5:ROUT115, 16, 17, 18, 19 OLogicdataoutput(to UART)AlwaysActivenon-invertingoutputfor RIN2(normallyusedfor ringROUT2B20 Oindicator)INVALID21 OActivelow outputwhenall RIN are unpoweredLow inputforcesDOUT1-5,ROUT1-5high Z perDeviceFunctionalFORCEOFF22 IModesHighforcesdriverson. Low is automaticmodeperDeviceFunctionalFORCEON2 3 IModesC1 24 Negativelead on C1 capacitorGND25 GroundVCC26 SupplyVoltage,Connectto 3V to +27 OPositivechargepumpoutputfor storagecapacitoronlyC1+28 Positivelead of C1 capacitorCopyright 1999 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLinks:MAX3243 MAX3243 SLLS350O APRIL1999 (unlessotherwisenoted)(1)MINMAXUNITVCCS upplyvoltagerange(2) +Positiveoutputsupplyvoltagerange(2) Negativeoutputsupplyvoltagerange(2) 7VV+ V Supplyvoltagedifference(2)13 VDriver,FORCEOFF,FORCEON 2525 Driver ,INVALID + CTstgStoragetemperaturerange 65150 C(1)StressesbeyondthoselistedunderAbsolu teMaximumRatingsmay causepermanentdamageto the stressratingsonly,and functionaloperationof the deviceat theseor any otherconditionsbeyondthoseindicatedunder RecommendedOperatingConditionsis not absolute-maximum-ratedconditionsfor extendedperiodsmay affectdevicereliability.

4 (2)All voltagesare with respectto (HBM),per ANSI/ESDA/JEDECJS-00115000 RIN , DOUT,and GNDpins(1)Humanbodymodel(HBM),per ANSI/ESDA/JEDECJS-001V(ESD)Electrostatic discharge3000 VAll otherpins(1)Chargeddevicemodel(CDM),per JEDEC specificationJESD22-C101,1000all pins(2)(1)JEDEC documentJEP155statesthat 500-VHBM allowssafe manufacturingwith a standardESDcontrolprocess.(2)JEDEC documentJEP157statesthat 250-VCDM allowssafe manufacturingwith a (1)(SeeFigure8)MINNOMMAXUNITVCC= 5 ,FORCEOFF,VIHD riverand controlhigh-levelinputvoltageVFORCEONVCC = 5 controllow-levelinputvoltageDIN,FORCEOFF , controlinputvoltageDIN,FORCEOFF, 2525 VMAX3243C070 TAOperatingfree-airtemperature CMAX3243I 4085(1)Testconditionsare C1 C4 = F at VCC= V V; C1 = F, C2 C4 = F at VCC= 5 V (1)DBDWPWUNIT16 PINS16 PINS16 PINSR JAJunction-to-ambientthermalresistance62 4662 C/W(1)For moreinformationabouttraditionaland new thermalmetrics,see theICPackageThermalMetricsapplicationrep ort(SPRA953).

5 4 SubmitDocumentationFeedbackCopyright 1999 2015, APRIL1999 AutoPowerDownoverrecommendedrangesof supplyvoltageand operatingfree-airtemperature(unlessother wisenoted)(1)(seeFigure8)PARAMETERTESTCO NDITIONSMINTYP(2)MAXUNITS upplycurrentAuto-powerdownNo load,FORCEOFFand FORCEONat VCC. TA= 25 load,FORCEOFFat 25 C110 Poweredoff ASupplycurrentNo load,FORCEOFFat VCC, FORCEONat GND,Auto-powerdownAll RIN are openor grounded,All DIN are CIII nputleakagecurrentVI= VCCor VIat GND 1 Aof FORCEOFF,FORCEONR eceiverinputthresholdFORCEON= GND,VIT+for VCCvoltageReceiverinputthresholdFORCEON= GND,VIT for INVALID high-leveloutput VCCvoltageReceiverinputthresholdFORCEON= GND,VTfor INVALIDlow-leveloutput VCCvoltageINVALID high-leveloutputIOH= -1 mA, FORCEON= GND,VOHVCC VCCINVALIDlow-leveloutputIOL= mA, FORCEON= GND, VCC(1)Testconditionsare C1 C4 = F at VCC= V V; C1 = F, C2 C4 = F at VCC= 5 V V.

6 (2)StressesbeyondthoselistedunderAbsolut eMaximumRatingsmay causepermanentdamageto the stressratingsonly,and functionaloperationof the deviceat theseor any otherconditionsbeyondthoseindicatedunder RecommendedOperatingConditionsis not absolute-maximum-ratedconditionsfor extendedperiodsmay Driveroverrecommendedrangesof supplyvoltageand operatingfree-airtemperature(unlessother wisenoted)(1)(seeFigure8)PARAMETERTESTCO NDITIONSMINTYP(2)MAXUNITVOHHigh-levelout putvoltageAll DOUTat RL= 3 k to DOUTat RL= 3 k to GND 5 DIN2= GND,DIN3= VCC, 3-k to GNDat DOUT3,VO 5V(mousedriveability)DOUT1= DOUT2= mAIIHHigh-levelinputcurrentVI= VCC 1 AIILLow-levelinputcurrentVIat GND 1 AVhysInputhysteresis 1 VVCC= V,VO= 0 VIOSS hort-circuitoutputcurrent(3) 35 60mAVCC= V,VO= 0 VroOutputresistanceVCC, V+, and V = 0 V,VO= 2 V30010M VO= 12 V,VCC= 3 to V 25 IoffOutputleakagecurrentFORCEOFF= GND, AVO= 10 V,VCC= to V 25(1)Testconditionsare C1 C4 = F at VCC= V V; C1 = F, C2 C4 = F at VCC= 5 V V.

7 (2)All typicalvaluesare at VCC= V or VCC= 5 V, and TA= 25 C.(3)Short-circuitdurationsshouldbe controlledto preventexceedingthe deviceabsolutepowerdissipationratings,an d not morethanoneoutputshouldbe shortedat a 1999 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback5 ProductFolderLinks:MAX3243 MAX3243 SLLS350O APRIL1999 Receiveroverrecommendedrangesof supplyvoltageand operatingfree-airtemperature(unlessother wisenoted)(1)(seeFigure8)PARAMETERTESTCO NDITIONSMINTYP(2)MAXUNITVOHHigh-levelout putvoltageIOH= 1 mAVCC +Positive-goinginputthresholdvoltageVVCC = 5 Negative-goinginputthresholdvoltageVVCC= 5 (VIT+ VIT ) (exceptROUT2B)FORCEOFF= 0 V 10 ArIInputresistanceVI= 3 V or 25 V357k (1)Testconditionsare C1 C4 = F at VCC= V V; C1 = F, C2 C4 = F at VCC= 5 V V.(2)All typicalvaluesare at VCC= V or VCC= 5 V, and TA= 25 AutoPowerDownoverrecommendedrangesof supplyvoltageand operatingfree-airtemperature(unlessother wisenoted)(seeFigure7)PARAMETERTESTCONDI TIONSTYP(1)UNIT tvalidPropagationdelaytime,low- to high-leveloutputVCC= 5 V1 stinvalidPropagationdelaytime,high-to low-leveloutputVCC= 5 V30 stenSupplyenabletimeVCC= 5 V100 s(1)All typicalvaluesare at VCC= V or VCC= 5 V, and TA= 25 Driveroverrecommendedrangesof supplyvoltageand operatingfree-airtemperature(unlessother wisenoted)(1)(seeFigure8)MAX3243C,MAX324 3 IPARAMETERTESTCONDITIONSMINTYP(2)MAXUNIT RL= 3 k CL= 1000pFMaximumdatarate150250kbit/sOne DOUT switching,See Figure3CL= 150 pF to 2500pFtsk(p)Pulseskew(3)RL= 3 k to 7 k 100nsSee Figure5CL= 150 pF to 1000pF630 Slewrate,transitionregionVCC= V,SR(tr)V/ s(seeFigure3)RL= 3 k to 7 k CL= 150 pF to 2500pF430(1)

8 Testconditionsare C1 C4 = F at VCC= V + V; C1 = F, C2 C4 = F at VCC= 5 V V.(2)All typicalvaluesare at VCC= V or VCC= 5 V, and TA= 25 C.(3)Pulseskewis definedas |tPLH tPHL| of eachchannelof the Receiveroverrecommendedrangesof supplyvoltageand operatingfree-airtemperature(unlessother wisenoted)(1)PARAMETERTESTCONDITIONSTYP( 2)UNITtPLHP ropagationdelaytime,low- to high-leveloutput150nsCL= 150 pF,See Figure5tPHLP ropagationdelaytime,high-to low-leveloutput150nstenOutputenabletime2 00nsCL= 150 pF, RL= 3 k ,See Figure6tdisOutputdisabletime200nstsk(p)P ulseskew(3)See Figure550ns(1)Testconditionsare C1 C4 = F at VCC= V V; C1 = F, C2 C4 = F at VCC= 5 V V.(2)All typicalvaluesare at VCC= V or VCC= 5 V, and TA= 25 C.(3)Pulseskewis definedas |tPLH- tPHL| of eachchannelof the 1999 2015,TexasInstrumentsIncorporatedProduct FolderLinks:MAX3243012345605101520253035 VOH (V) Load Current (mA) VOHC001 6 5 4 3 2 1 005101520253035 VOL (V) Load Current (mA) VOLC001 APRIL1999 VFigure1.

9 DOUTVOHvs LoadCurrentFigure2. DOUTVOLvs LoadCurrentCopyright 1999 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback7 ProductFolderLinks:MAX3243 TEST CIRCUITVOLTAGE WAVEFORMS50W 3 V3 VOutputInputVOLVOHtPHLG enerator(see Note B)tPLHO utputCL(see Note A)3 V or 0 VFORCEONNOTES: A. CLincludes probe and jig The pulse generator has the following characteristics: ZO= 50W, 50% duty cycle, tr 10 ns, tf 10 V50%50%50 WTEST CIRCUITVOLTAGE WAVEFORMS0 V3 VOutputInputVOLVOHtPLHG enerator(see Note B)RL3 VFORCEOFFRS-232 OutputtPHLCL(see Note A)NOTES: A. CLincludes probe and jig The pulse generator has the following characteristics: PRR = 250 kbit/s (MAX3243C/I) and 1 Mbit/s (MAX3243FC/I),ZO= 50W, 50% duty cycle, tr 10 ns, tf 10 V50 WTEST CIRCUITVOLTAGE WAVEFORMS 3 V 3 V3 V3 V0 V3 VOutputInputVOLVOHtTLHG enerator(see Note B)RL3 VFORCEOFFRS-232 OutputtTHLCL(see Note A)SR(tr)6 VtTHLor tTLHNOTES: A.

10 CLincludes probe and jig The pulse generator has the following characteristics: PRR = 250 kbit/s (MAX3243C/I) and 1 Mbit/s (MAX3243FC/I),ZO= 50W, 50% duty cycle, tr 10 ns, tf 10 APRIL1999 ParameterMeasurementInformationFigure3. DriverSlewRateFigure4. DriverPulseSkewFigure5. ReceiverPropagationDelayTimes8 SubmitDocumentationFeedbackCopyright 1999 2015,TexasInstrumentsIncorporatedProduct FolderLinks:MAX3243 TEST CIRCUIT50 WGenerator(see Note B)3 V or 0 V3 V or 0 VFORCEONFORCEOFFNOTES: A. CLincludes probe and jig The pulse generator has the following characteristics: ZO= 50W, 50% duty cycle, tr 10 ns, tf 10 tPLZand tPHZare the same as tPZLand tPZHare the same as (see Note A)OutputVOLTAGE WAVEFORMSO utputVOLVOHtPZH(S1 at GND)3 V0 V50%tPHZ(S1 at GND)tPLZ(S1 at VCC)50%tPZL(S1 at VCC) APRIL1999 REVISEDJANUARY2015 ParameterMeasurementInformation(continue d)Figure6.