MAX3227EETE+中文资料

________________GeneralDescriptionTheMAX3224E/MAX3225E/MAX3226E/MAX3227E/MAX3244E/MAX3245Eare3V-poweredEIA/TIA-232andV.28/V.24communicationsinterfaceswithautomat-icshutdown/wakeupfeatures,highdata-ratecapabili-ties,andenhancedelectrostaticdischarge(ESD)protection.Alltransmitteroutputsandreceiverinputsareprotectedto±15kVusingIEC1000-4-2Air-GapDischarge,±8kVusingIEC1000-4-2ContactDischarge,and±15kVusingtheHumanBodyModel.Alldevicesachievea1µAsupplycurrentusingMaxim’srevolutionaryAutoShutdownPlus™feature.Thesedevicesautomaticallyenteralow-powershutdownmodewhentheRS-232cableisdisconnectedorthetransmittersoftheconnectedperipheralsareinactive,andtheUARTdrivingthetransmitterinputsisinactiveformorethan30seconds.Theyturnonagainwhentheysenseavalidtransitionatanytransmitterorreceiv-erinput.AutoShutdownPlussavespowerwithoutchangestotheexistingBIOSoroperatingsystem.TheMAX3225E/MAX3227E/MAX3245EalsofeatureMegaBaud™operation,guaranteeing1Mbpsforhigh-speedapplicationssuchascommunicatingwithISDNmodems.TheMAX3224E/MAX3226E/MAX3244Eguar-antee250kbpsoperation.Thetransceivershaveapro-prietarylow-dropouttransmitteroutputstageenablingtrueRS-232performancefroma+3.0Vto+5.5Vsupplywithadualchargepump.Thechargepumprequiresonlyfoursmall0.1µFcapacitorsforoperationfroma3.3Vsupply.TheMAX3224E–MAX3227Efeaturealogic-leveloutput(READY)thatassertswhenthechargepumpisregulatingandthedeviceisreadytobegintransmitting.Alldevicesareavailableinaspace-savingTQFN,SSOP,andTSSOP(MAX3224E/MAX3225E/MAX3244E/MAX3245E)packages.________________________ApplicationsNotebook,Subnotebook,andPalmtopComputersCellularPhonesBattery-PoweredEquipmentHand-HeldEquipmentPeripheralsPrinters__NextGenerationDeviceFeatures♦ForSpace-ConstrainedApplications:MAX3228E/MAX3229E:±15kVESD-Protected,+2.5Vto+5.5V,RS-232TransceiversinUCSPMAX3222E/MAX3232E/MAX3241E†/MAX3246E:±15kVESD-Protected,Downto10nA,+3.0Vto+5.5V,Upto1Mbps,TrueRS-232Transceivers(MAX3246EAvailableinUCSP™)♦ForLow-VoltageorDataCableApplications:MAX3380E/MAX3381E:+2.35Vto+5.5V,1µA,2Tx/2RxRS-232Transceiverswith±15kVESD-ProtectedI/OandLogicPinsMAX3224E–MAX3227E/MAX3244E/MAX3245E†±15kVESD-Protected,1µA,1Mbps,3.0Vto5.5V,RS-232TransceiverswithAutoShutdownPlus________________________________________________________________MaximIntegratedProducts119-1339;Rev9;2/07PARTMAX3224EMAX3225EMAX3226E1/12/22/2NO.OFDRIVERS/RECEIVERSREADYOUTPUT✔✔✔Auto-ShutdownPlus✔✔✔250k1M250kGUARANTEEDDATARATE(bps)MAX3227EMAX3244EMAX3245E3/53/51/1✔——✔✔✔1M250k1MOrderingInformationcontinuedatendofdatasheet.*EP=Exposedpaddle.†CoveredbyU.S.Patentnumbers4,636,930;4,679,134;4,777,577;4,797,899;4,809,152;4,897,774;4,999,761;5,649,210;andotherpatentspending.AutoShutdownPlus,MegaBaud,andUCSParetrademarksofMaximIntegratedProducts,Inc._____________________SelectorGuideOrderingInformationPARTTEMPRANGEPINPKGPKGCODEMAX3224ECTP0°Cto+70°C20TQFN-EP*T2055-5MAX3224ECUP0°Cto+70°C20TSSOP—MAX3224ECAP0°Cto+70°C20SSOP—MAX3224ECPP0°Cto+70°C20PlasticDIP—MAX3224EETP-40°Cto+85°C20TQFN-EP*T2055-5MAX3224EEUP-40°Cto+85°C20TSSOP—MAX3224EEAP-40°Cto+85°C20SSOP—MAX3224EEPP-40°Cto+85°C20PlasticDIP—MAX3224EAAP-40°Cto+125°C20SSOP—Forpricing,delivery,andorderinginformation,pleasecontactMaxim/DallasDirect!at1-888-629-4642,orvisitMaxim’swebsiteat–MAX3227E/MAX3244E/MAX3245E†±15kVESD-Protected,1µA,1Mbps,3.0Vto5.5V,RS-232TransceiverswithAutoShutdownPlus2_______________________________________________________________________________________ABSOLUTEMAXIMUMRATINGSELECTRICALCHARACTERISTICS(VCC=+3Vto+5.5V,C1–C4=0.1µF,testedat3.3V±10%;C1=0.047µF,C2–C4=0.33µF,testedat5.0V±10%;TA=TMINtoTMAX,unlessotherwisenoted.TypicalvaluesareatTA=+25°C.)Stressesbeyondthoselistedunder“AbsoluteMaximumRatings”maycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedintheoperationalsectionsofthespecificationsisnotimplied.Exposuretoabsolutemaximumratingconditionsforextendedperiodsmayaffectdevicereliability.VCCtoGND..............................................................-0.3Vto+6VV+toGND(Note1)..................................................-0.3Vto+7VV-toGND(Note1)...................................................+0.3Vto-7VV++⏐V-⏐(Note1)................................................................+13VInputVoltagesT_IN,FORCEON,FORCEOFFtoGND................-0.3Vto+6VR_INtoGND....................................................................±25VOutputVoltagesT_OUTtoGND.............................................................±13.2VR_OUT,INVALID,READYtoGND.........-0.3Vto(VCC+0.3V)Short-CircuitDurationT_OUTtoGND.......................................................ContinuousContinuousPowerDissipation(TA=+70°C)16-PinSSOP(derate7.14mW/°Cabove+70°C).........571mW16-PinTSSOP(derate9.4mW/°Cabove+70°C)......754.7mW16-PinTQFN(derate20.8mW/°Cabove+70°C)....1666.7mW20-PinTQFN(derate21.3mW/°Cabove+70°C)....1702.1mW20-PinPlasticDIP(derate11.11mW/°Cabove+70°C)...889mW20-PinSSOP(derate8.00mW/°Cabove+70°C).........640m