DS1339U-33+中文资料

1of20REV:100108GENERALDESCRIPTIONTheDS1339serialreal-timeclock(RTC)isalow-powerclock/datedevicewithtwoprogrammabletime-of-dayalarmsandaprogrammablesquare-waveoutput.AddressanddataaretransferredseriallythroughanI2Cbus.Theclock/dateprovidesseconds,minutes,hours,day,date,month,andyearinformation.Thedateattheendofthemonthisautomaticallyadjustedformonthswithfewerthan31days,includingcorrectionsforleapyear.Theclockoperatesineitherthe24-houror12-hourformatwithAM/PMindicator.TheDS1339hasabuilt-inpower-sensecircuitthatdetectspowerfailuresandautomaticallyswitchestothebackupsupply,maintainingtime,date,andalarmoperation.APPLICATIONSHandhelds(GPS,POSTerminals)ConsumerElectronics(Set-TopBox,DigitalRecording,NetworkAppliance)OfficeEquipment(Fax/Printers,Copier)Medical(Glucometer,MedicineDispenser)Telecommunications(Routers,Switches,Servers)Other(UtilityMeter,VendingMachine,Thermostat,Modem)FEATURESReal-TimeClock(RTC)CountsSeconds,Minutes,Hours,Day,Date,Month,andYearwithLeap-YearCompensationValidUpto2100AvailableinaSurface-MountPackagewithanIntegratedCrystal(DS1339C)I2CSerialInterfaceTwoTime-of-DayAlarmsProgrammableSquare-WaveOutputOscillatorStopFlagAutomaticPower-FailDetectandSwitchCircuitryTrickle-ChargeCapabilityUnderwritersLaboratory(UL)RecognizedPinConfigurationsappearatendofdatasheet.ORDERINGINFORMATIONPARTTEMPRANGEVOLTAGE(V)PIN-PACKAGETOPMARK†DS1339C-2#-40°Cto+85°C2.016SO(300mils)DS1339C-2DS1339C-3#-40°Cto+85°C3.016SO(300mils)DS1339C-3DS1339C-33#-40°Cto+85°C3.316SO(300mils)DS1339C-33DS1339U-2+-40°Cto+85°C2.08μSOP1339rr-2DS1339U-3+-40°Cto+85°C3.08μSOP1339rr-3DS1339U-33+-40°Cto+85°C3.38μSOP1339rr-33+Denotesalead-free/RoHS-compliantdevice.#DenotesaRoHS-compliantdevicethatmayincludeleadthatisexemptundertheRoHSrequirements.TheleadfinishisJESD97categorye3,andiscompatiblewithbothlead-basedandlead-freesolderingprocesses.†A“+”anywhereonthetopmarkindicatesalead-freedevice.A“#”denotesaRoHS-compliantdevice.rr=secondline,revisioncodeDS1339I2CSerialReal-TimeClock………………………………………………………………-0.3Vto+6.0VOperatingTemperatureRange(Noncondensing)………………………………………………………….-40°Cto+85°CStorageTemperatureRange………………………………………………………………………………..-55°Cto+125°CSolderingTemperatureRange………………..SeeprecautionsintheHandling,PCBLayout,andAssemblysection.Stressesbeyondthoselistedunder“AbsoluteMaximumRatings”maycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedintheoperationalsectionsofthespecificationsisnotimplied.Exposuretotheabsolutemaximumratingconditionsforextendedperiodsmayaffectdevicereliability.RECOMMENDEDDCOPERATINGCONDITIONS(TA=-40°Cto+85°C)(Note1)PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSDS1339-21.82.02.2DS1339-32.73.03.3SupplyVoltageVCCDS1339-332.973.35.5VBackupSupplyVoltageVBACKUP1.33.03.7VLogic1VIH0.7xVCCVCC+0.3VLogic0VIL-0.3+0.3xVCCVDS1339-21.581.701.80DS1339-32.452.592.70Power-FailVoltageVPFDS1339-332.702.852.97VDCELECTRICALCHARACTERISTICS(VCC=MINtoMAX,TA=-40°Cto+85°C.)(Note1)PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSInputLeakageILI(Note2)1μAI/OLeakageILO(Note3)1μALogic0OutVOL=0.4V;VCCVCCMIN(-3,-33);VCC≥2.0V(-2)IOL(Note3)3mALogic0OutVOL=0.2(VCC);1.8VVCC2.0V(DS1339-2)IOL(Note3)3mALogic0OutVOL=0.2(VCC);1.3VVCC1.8V(DS1339-2)IOL(Note3)250μAVCCActiveCurrentICCA(Note4)450μAVCC≤3.63V80150VCCStandbyCurrent(Note5)ICCS3.63VVCC≤5.5V200μADS1339I2CSerialReal-TimeClock3of20DCELECTRICALCHARACTERISTICS(continued)(VCC=MINtoMAX,TA=-40°Cto+85°C.)(Note1)PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSTrickle-ChargerResistorRegister10h=A5h,VCC=Typ,VBACKUP=0VR1(Note6)250ΩTrickle-ChargerResistorRegister10h=A6h,VCC=Typ,VBACKUP=0VR22000ΩTrickle-ChargerResistorRegister10h=A7h,VCC=Typ,VBACKUP=0VR34000ΩVBACKUPLeakageCurrentIBKLKG25100nADCELECTRICALCHARACTERISTICS(VCC=0V,TA=-40°Cto+85°C.)(Note1)PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSVBACKUPCurrentEOSC=0,SQWOffIBKOSC(Note7)400700nAVBACKUPCurrentEOSC=0,SQWOnIBKSQW(Note7)6001000nAVBACKUPCurrentEOSC=1IBKDR10100nADS1339I2CSerialReal-TimeClock4of20ACELECTRICALCHARACTERISTICS(VCC=MINtoMAX,TA=-40°Cto+85°C.)(Note13)PARAMETERSYMBOLCONDITIONMINTYPMAXUNITSFastmode100400SCLClockFrequencyfSCLStandardmode100kHzFastmode1.3BusFreeTimeBetweenaSTOPandSTARTConditiontBUFStandardmode4.7μsFastmode0.6HoldTime(Repeated)STARTCondition(Note8)tHD:STAStandardmode4.0μsFastmode1.3LOWPeriodofSCLClocktLOWStandardmode4.7μsFastmode0.6HIGHPeriodofSCLClocktHIGHStandardmode4.0μsFastmode0.6SetupTimeforaRepeatedSTARTConditiontSU:STAStandardmode4.7μsFastmode00.9DataHoldTime(Notes9,10)tHD:DATStandardmode0μsFastmode100DataSetupTime(Note11)tSU:DATStandardmode250nsFastmode20+0.1CB300RiseTimeofBothSDAandSCLSignals(Note12)tRStandardmode20+0.1CB1000nsFastmode20+0.1CB300FallTimeofBothSDAandSCLSignals(Note12)tFStandardmode20+0.1CB300nsFastmode0.6SetupTimeforSTOPConditiontSU:STOStandardmode4.0μsCapacitiveLoadforEachBusLine(Note12)CB400pFI/OCapacitance(SDA,SCL)CI/O(Note13)10pFOscillatorStop