X5045英文原版文档

1®FN8126.1CAUTION:Thesedevicesaresensitivetoelectrostaticdischarge;followproperICHandlingProcedures.1-888-INTERSILor1-888-468-3774|Intersil(anddesign)isaregisteredtrademarkofIntersilAmericasInc.CopyrightIntersilAmericasInc.2005.AllRightsReservedAllothertrademarksmentionedarethepropertyoftheirrespectiveowners.X5043,X50454K,512x8BitCPUSupervisorwith4KSPIEEPROMThesedevicescombinefourpopularfunctions,Power-onResetControl,WatchdogTimer,SupplyVoltageSupervision,andBlockLockProtectSerialEEPROMMemoryinonepackage.Thiscombinationlowerssystemcost,reducesboardspacerequirements,andincreasesreliability.Applyingpowertothedeviceactivatesthepower-onresetcircuitwhichholdsRESET/RESETactiveforaperiodoftime.Thisallowsthepowersupplyandoscillatortostabilizebeforetheprocessorexecutescode.TheWatchdogTimerprovidesanindependentprotectionmechanismformicrocontrollers.Whenthemicrocontrollerfailstorestartatimerwithinaselectabletimeoutinterval,thedeviceactivatestheRESET/RESETsignal.Theuserselectstheintervalfromthreepresetvalues.Onceselected,theintervaldoesnotchange,evenaftercyclingthepower.Thedevice’slowVCCdetectioncircuitryprotectstheuser’ssystemfromlowvoltageconditions,resettingthesystemwhenVCCfallsbelowtheminimumVCCtrippoint.RESET/RESETisasserteduntilVCCreturnstoproperoperatinglevelandstabilizes.FourindustrystandardVTRIPthresholdsareavailable,however,Intersil’suniquecircuitsallowthethresholdtobereprogrammedtomeetcustomrequirementsortofine-tunethethresholdforapplicationsrequiringhigherprecision.ThememoryportionofthedeviceisaCMOSSerialEEPROMarraywithIntersil’sblocklockprotection.Thearrayisinternallyorganizedas512x8.ThedevicefeaturesaSerialPeripheralInterface(SPI)andsoftwareprotocolallowingoperationonasimplefour-wirebus.ThedeviceutilizesIntersil’sproprietaryDirectWrite™cell,providingaminimumenduranceof100,000cyclesandaminimumdataretentionof100years.Features•LowVCCDetectionandResetAssertion-Fourstandardresetthresholdvoltages4.63V,4.38V,2.93V,2.63V-Re-programlowVCCresetthresholdvoltageusingspecialprogrammingsequence.-ResetsignalvalidtoVCC=1V•SelectableTimeOutWatchdogTimer•LongBatteryLifewithLowPowerConsumption-50µAmaxstandbycurrent,watchdogon-10µAmaxstandbycurrent,watchdogoff•4KbitsofEEPROM–1MWriteCycleEndurance•SaveCriticalDatawithBlockLock™Memory-Protect1/4,1/2,allornoneofEEPROMarray•Built-inInadvertentWriteProtection-Writeenablelatch-Writeprotectpin•SPIInterface-3.3MHzClockRate•MinimizeProgrammingTime-16-bytepagewritemode-5mswritecycletime(typical)•AvailablePackages-8LdMSOP,8LdSOIC,8LdPDIP-14LdTSSOP•Pb-FreePlusAnnealAvailable(RoHSCompliant)Applications•CommunicationsEquipment-Routers,Hubs,Switches-SetTopBoxes•IndustrialSystems-ProcessControl-IntelligentInstrumentation•ComputerSystems-DesktopComputers-NetworkServers•BatteryPoweredEquipmentDataSheetSeptember16,20052FN8126.1September16,2005TypicalApplicationBlockDiagramuCRESETCSSCKSISOWPVCCVSSRESETSPIVCCVSSX50432.7-5.0V10KWatchdogTimerCommandDecode&ControlLogicSISOSCKCS/WDIVCCPORandLowGenerationVTRIP+-RESET(X5043)VoltageResetProtectLogic4KbitsEEPROMWatchdogDetectorWPArrayStatusRegisterTransitionResetReset&WatchdogTimebaseRESET(X5045)X5043,X5045STANDARDVTRIPLEVELSUFFIX4.63V(+/-2.5%)-4.5A4.38V(+/-2.5%)-4.52.93V(+/-2.5%)-2.7A2.63V(+/-2.5%)-2.7See“OrderingInformation”onpage3.formoredetailsForCustomSettings,callIntersil.X5043,X50453FN8126.1September16,2005OrderingInformationPARTNUMBERRESET(ACTIVELOW)PARTMARKINGPARTNUMBERRESET(ACTIVEHIGH)PARTMARKINGVCCRANGEVTRIPRANGETEMPRANGE(°C)PACKAGEX5043P-4.5AX5045P-4.5A4.5-5.5V4.5-4.750to708LdPDIPX5043PZ-4.5A(Note)X5045PZ-4.5A(Note)0to708LdPDIP(Pb-free)X5043PI-4.5AX5045PI-4.5A-40to858LdPDIPX5043PIZ-4.5A(Note)X5045PIZ-4.5A(Note)X5045PZAM-40to858LdPDIP(Pb-free)X5043S8-4.5AX5043ALX5045S8-4.5AX5045AL0to708LdSOICX5043S8Z-4.5A(Note)X5043ZALX5045S8Z-4.5A(Note)X5045ZAL0to708LdSOIC(Pb-free)X5043S8I-4.5A*X5043AMX5045S8I-4.5A*X5045AM-40to858LdSOICX5043S8IZ-4.5A*(Note)X5043ZAMX5045S8IZ-4.5A*(Note)X5045ZAM-40to858LdSOIC(Pb-free)X5043M8-4.5AAEMX5045M8-4.5AAEV0to708LdMSOPX5043M8Z-4.5A(Note)DBSX5045M8Z-4.5A(Note)DCA0to708LdMSOP(Pb-free)X5043M8I-4.5A*AENX5045M8I-4.5AAEW-40to858LdMSOPX5043M8IZ-4.5A(Note)DBMX5045M8IZ-4.5A(Note)DBX-40to858LdMSOP(Pb-free)X5043V14I-4.5AX5045V14I-4.5A-40to8514LdTSSOPX5043PX5043PX5045PX5045P4.25-4.50to708LdPDIPX5043PZ(Note)X5043PZX5045PZ(Note)X5045PZ0to708LdPDIP(Pb-free)X5043PIX5043PIX5045PIX5045PI-40to858LdPDIPX5043PIZ(Note)X5043PZIX5045PIZ(Note)X5045PZI-40to858LdPDIP(Pb-free)X5043ST1--0to708LdSOICTapeandReelX5043ST2--0to70X5043S8*X5043X5045S8*X50450to708LdSOICX5043S8Z*(Note)X5043ZX5045S8Z*(Note)X5045Z0to708LdSOIC(Pb-free)X5043S8I*X5043IX5045S8I*X5045I-40to858LdSOICX5043S8IZ*(Note)X5043ZIX5045S8IZ*(Note)X5045ZI-40to858LdSOIC(Pb-free)X5043SM*--0to708LdSOIC--X5045SMT10to708LdSOICTapeandReelX5043M8AEOX5045M8AEX0to708LdMSOPX5043M8Z(Note)DBNX5045M8Z(Note)DBY0to708LdMSOP(Pb-free)X5043M8IAEPX5045M8IAEY-40to858LdMSOPX5043M8IZ(Note)DBJX5045M8IZ(Note)DBT-40to858LdMSOP(Pb-free)X5043V-0to7014LdTSSOPX5043V14IX5045V14I-40to8514LdTSSOPX5043,X50454FN8126.1Septe