AT93C66-10TI中文资料

1Features•Low-voltageandStandard-voltageOperation–2.7(VCC=2.7Vto5.5V)–1.8(VCC=1.8Vto5.5V)User-selectableInternalOrganization–1K:128x8or64x16–2K:256x8or128x16–4K:512x8or256x16Three-wireSerialInterface2MHzClockRate(5V)Self-timedWriteCycle(10msmax)HighReliability–Endurance:1MillionWriteCycles–DataRetention:100YearsAutomotiveGrade,ExtendedTemperatureandLead-Free/Halogen-FreeDevicesAvailable8-leadPDIP,8-leadJEDECSOIC,8-leadEIAJSOIC,8-leadMAP,8-leadTSSOP,and8-balldBGA2PackagesDescriptionTheAT93C46/56/66provides1024/2048/4096bitsofserialelectricallyerasablepro-grammableread-onlymemory(EEPROM),organizedas64/128/256wordsof16bitseach(whentheORGpinisconnectedtoVCC),and128/256/512wordsof8bitseach(whentheORGpinistiedtoground).Thedeviceisoptimizedforuseinmanyindus-trialandcommercialapplicationswherelow-powerandlow-voltageoperationsareessential.TheAT93C46/56/66isavailableinspace-saving8-leadPDIP,8-leadJEDECSOIC,8-leadEIAJSOIC,8-leadMAP,8-leadTSSOP,and8-leaddBGA2packages.TheAT93C46/56/66isenabledthroughtheChipSelectpin(CS)andaccessedviaathree-wireserialinterfaceconsistingofDataInput(DI),DataOutput(DO),andShiftClock(SK).UponreceivingaReadinstructionatDI,theaddressisdecodedandthedataisclockedoutseriallyontheDOpin.TheWritecycleiscompletelyself-timed,andnoseparateErasecycleisrequiredbeforeWrite.TheWritecycleisonlyenabledwhenthepartisintheErase/WriteEnablestate.WhenCSisbroughthighfollowingtheinitiationofaWritecycle,theDOpinoutputstheReady/Busystatusofthepart.TheAT93C46/56/66isavailablein2.7Vto5.5Vand1.8Vto5.5Vversions.Table1.PinConfigurationsPinNameFunctionCSChipSelectSKSerialDataClockDISerialDataInputDOSerialDataOutputGNDGroundVCCPowerSupplyORGInternalOrganizationDCDon’tConnectThree-wireSerialEEPROMs1K(128x8or64x16)2K(256x8or128x16)4K(512x8or256x16)AT93C46AT93C56(1)AT93C66(2)Note:1.Thisdeviceisnotrecom-mendedfornewdesigns.PleaserefertoAT93C56A.2.Thisdeviceisnotrecom-mendedfornewdesigns.PleaserefertoAT93C66A.0172Z–SEEPR–9/0512348765CSSKDIDOVCCDCORGGNDVCCDCORGGNDCSSKD1D01234876512348765CSSKDIDOVCCDCORGGND12348765DCVCCCSSKORGGNDDODI12348765VCCDCORGGNDCSSKDIDO12348765CSSKDIDOVCCDCORGGND8-leadSOIC8-leaddBGA28-leadPDIP8-leadSOICRotated(R)(1KJEDECOnly)8-leadMAP8-leadTSSOP2AT93C46/56/660172Z–SEEPR–9/05Figure1.BlockDiagramNote:WhentheORGpinisconnectedtoVCC,the“x16”organizationisselected.Whenitisconnectedtoground,the“x8”organizationisselected.IftheORGpinisleftuncon-nectedandtheapplicationdoesnotloadtheinputbeyondthecapabilityoftheinternal1Megohmpullup,thenthe“x16”organizationisselected.Thefeatureisnotavailableonthe1.8Vdevices.FortheAT93C46,if“x16”organizationisthemodeofchoiceandPin6(ORG)isleftunconnected,AtmelrecommendsusingtheAT93C46Adevice.Formoredetails,seetheAT93C46Adatasheet.AbsoluteMaximumRatings*OperatingTemperature......................................−55°Cto+125°C*NOTICE:Stressesbeyondthoselistedunder“AbsoluteMaximumRatings”maycausepermanentdam-agetothedevice.Thisisastressratingonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedintheoperationalsectionsofthisspecificationisnotimplied.ExposuretoabsolutemaximumratingconditionsforextendedperiodsmayaffectdevicereliabilityStorageTemperature.........................................−65°Cto+150°CVoltageonAnyPinwithRespecttoGround........................................−1.0Vto+7.0VMaximumOperatingVoltage..........................................6.25VDCOutputCurrent........................................................5.0mA3AT93C46/56/660172Z–SEEPR–9/05Note:1.Thisparameterischaracterizedandisnot100%tested.Note:1.VILminandVIHmaxarereferenceonlyandarenottested.Table2.PinCapacitance(1)ApplicableoverrecommendedoperatingrangefromTA=25°C,f=1.0MHz,VCC=+5.0V(unlessotherwisenoted)SymbolTestConditionsMaxUnitsConditionsCOUTOutputCapacitance(DO)5pFVOUT=0VCINInputCapacitance(CS,SK,DI)5pFVIN=0VTable3.DCCharacteristicsApplicableoverrecommendedoperatingrangefrom:TAI=−40°Cto+85°C,VCC=+1.8Vto+5.5V,TAE=-40°Cto+125°C,VCC=+1.8Vto+5.5V(unlessotherwisenoted)SymbolParameterTestConditionMinTypMaxUnitVCC1SupplyVoltage1.85.5VVCC2SupplyVoltage2.75.5VVCC3SupplyVoltage4.55.5VICCSupplyCurrentVCC=5.0VREADat1.0MHz0.52.0mAWRITEat1.0MHz0.52.0mAISB1StandbyCurrentVCC=1.8VCS=0V00.1µAISB2StandbyCurrentVCC=2.7VCS=0V6.010.0µAISB3StandbyCurrentVCC=5.0VCS=0V1730µAIILInputLeakageVIN=0VtoVCC0.11.0µAIOLOutputLeakageVIN=0VtoVCC0.11.0µAVIL1(1)InputLowVoltage2.7V≤VCC≤5.5V−0.60.8VVIH1(1)InputHighVoltage2.0VCC+1VIL2(1)InputLowVoltage1.8V≤VCC≤2.7V−0.6VCCx0.3VVIH2(1)InputHighVoltageVCCx0.7VCC+1VOL1OutputLowVoltage2.7V≤VCC≤5.5VIOL=2.1mA0.4VVOH1OutputHighVoltageIOH=−0.4mA2.4VVOL2OutputLowVoltage1.8V≤VCC≤2.7VIOL=0.15mA0.2VVOH2OutputHighVoltageIOH=−100µAVCC–0.2V4AT93C46/56/660172Z–SEEPR–9/05Note:1.Thisparameterischaracterizedandisnot100%tested.Table4.ACCharacteristicsApplicableoverrecommendedoperatingrangefromTAI=−40°Cto+85°C,VCC=AsSpecified,CL=1TTLGateand100pF(unlessotherwisenoted)SymbolParameterTestConditionMinTypMaxUnitsfSKSKClockFrequency4.5V≤VCC≤5.5V2.7V≤VCC≤5.5V1.8V≤VCC≤5.5V000210.25MHztSKHSKHigh