AT24C02

1Features•Low-VoltageandStandard-VoltageOperation–5.0(VCC=4.5Vto5.5V)–2.7(VCC=2.7Vto5.5V)–2.5(VCC=2.5Vto5.5V)–1.8(VCC=1.8Vto5.5V)•InternallyOrganized128x8(1K),256x8(2K),512x8(4K),1024x8(8K)or2048x8(16K)•2-WireSerialInterface•SchmittTrigger,FilteredInputsforNoiseSuppression•BidirectionalDataTransferProtocol•100kHz(1.8V,2.5V,2.7V)and400kHz(5V)Compatibility•WriteProtectPinforHardwareDataProtection•8-BytePage(1K,2K),16-BytePage(4K,8K,16K)WriteModes•PartialPageWritesAreAllowed•Self-TimedWriteCycle(10msmax)•HighReliability–Endurance:1MillionWriteCycles–DataRetention:100Years–ESDProtection:3000V•AutomotiveGradeandExtendedTemperatureDevicesAvailable•8-Pinand14-PinJEDECSOIC,8-PinPDIP,8-PinMSOP,and8-PinTSSOPPackagesDescriptionTheAT24C01A/02/04/08/16provides1024/2048/4096/8192/16384bitsofserialelec-tricallyerasableandprogrammablereadonlymemory(EEPROM)organizedas128/256/512/1024/2048wordsof8bitseach.Thedeviceisoptimizedforuseinmanyindustrialandcommercialapplicationswherelowpowerandlowvoltageoperationareessential.TheAT24C01A/02/04/08/16isavailableinspacesaving8-pinPDIP,(AT24C01A/02/04/08/16),8-PinMSOP(AT24C01A/02),8-PinTSSOP(AT24C01A/02/04/08/16),and8-Pinand14-PinJEDECSOIC(AT24C01A/02/04/08/16)packagesandisaccessedviaa2-wireserialinterface.Inaddition,theentirefamilyisavailablein5.0V(4.5Vto5.5V),2.7V(2.7Vto5.5V),2.5V(2.5Vto5.5V)and1.8V(1.8Vto5.5V)versions.2-WireSerialEEPROM1K(128x8)2K(256x8)4K(512x8)8K(1024x8)16K(2048x8)AT24C01AAT24C02AT24C04AT24C08AT24C16Rev.0180D–10/98PinConfigurationsPinNameFunctionA0-A2AddressInputsSDASerialDataSCLSerialClockInputWPWriteProtectNCNoConnect14-PinSOIC1234567141312111098NCA0A1NCA2GNDNCNCVCCWPNCSCLSDANC8-PinSOIC12348765A0A1A2GNDVCCWPSCLSDA8-PinPDIP12348765A0A1A2GNDVCCWPSCLSDA8-PinTSSOP12348765A0A1A2GNDVCCWPSCLSDA8-PinMSOP12348765A0A1A2GNDVCCWPSCLSDAAT24C01A/02/04/08/162BlockDiagramPinDescriptionSERIALCLOCK(SCL):TheSCLinputisusedtopositiveedgeclockdataintoeachEEPROMdeviceandnegativeedgeclockdataoutofeachdevice.SERIALDATA(SDA):TheSDApinisbidirectionalforserialdatatransfer.Thispinisopen-draindrivenandmaybewire-ORedwithanynumberofotheropen-drainoropencollectordevices.DEVICE/PAGEADDRESSES(A2,A1,A0):TheA2,A1andA0pinsaredeviceaddressinputsthatarehardwiredfortheAT24C01AandtheAT24C02.Asmanyaseight1K/2Kdevicesmaybeaddressedonasinglebussystem(deviceaddressingisdiscussedindetailundertheDeviceAddressingsection).TheAT24C04usestheA2andA1inputsforhardwireaddressingandatotaloffour4Kdevicesmaybeaddressedonasinglebussystem.TheA0pinisanocon-nect.TheAT24C08onlyusestheA2inputforhardwireaddress-ingandatotaloftwo8Kdevicesmaybeaddressedonasinglebussystem.TheA0andA1pinsarenoconnects.TheAT24C16doesnotusethedeviceaddresspinswhichlimitsthenumberofdevicesonasinglebustoone.TheA0,A1andA2pinsarenoconnects.WRITEPROTECT(WP):TheAT24C01A/02/04/16hasaWriteProtectpinthatprovideshardwaredataprotection.TheWriteProtectpinallowsnormalread/writeoperationswhenconnectedtoground(GND).WhentheWriteProtectpinisconnectedtoVCC,thewriteprotectionfeatureisenabledandoperatesasshowninthefollowingtable.AbsoluteMaximumRatingsOperatingTemperature..................................-55°Cto+125°C*NOTICE:Stressesbeyondthoselistedunder“AbsoluteMaximumRatings”maycausepermanentdam-agetothedevice.Thisisastressratingonlyandfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedintheoperationalsectionsofthisspecificationisnotimplied.Exposuretoabsolutemaximumratingconditionsforextendedperiodsmayaffectdevicereliability.StorageTemperature.....................................-65°Cto+150°CVoltageonAnyPinwithRespecttoGround.....................................-1.0Vto+7.0VMaximumOperatingVoltage...........................................6.25VDCOutputCurrent........................................................5.0mAAT24C01A/02/04/08/163MemoryOrganizationAT24C01A,1KSERIALEEPROM:Internallyorganizedwith128pagesof1-byteeach,the1Krequiresa7-bitdatawordaddressforrandomwordaddressing.AT24C02,2KSERIALEEPROM:Internallyorganizedwith256pagesof1-byteeach,the2Krequiresan8-bitdatawordaddressforrandomwordaddressing.AT24C04,4KSERIALEEPROM:The4Kisinternallyorganizedwith256pagesof2byteseach.RandomwordaddressingChipNumberrequiresa9-bitdatawordaddress.AT24C08,8KSERIALEEPROM:The8Kisinternallyorganizedwith4blocksof256pagesof4byteseach.Ran-domwordaddressingrequiresa10-bitdatawordaddress.AT24C16,16KSERIALEEPROM:The16Kisinternallyorganizedwith8blocksof256pagesof8byteseach.Ran-domwordaddressingrequiresan11-bitdatawordaddress.Note:1.Thisparameterischaracterizedandisnot100%tested.Note:1.VILminandVIHmaxarereferenceonlyandarenottested.WPPinStatusPartoftheArrayProtected24C01A24C0224C0424C0824C16AtVCCFull(1K)ArrayFull(2K)ArrayFull(4K)ArrayNormalRead/WriteOperationUpperHalf(8K)ArrayAtGNDNormalRead/WriteOperationsPinCapacitance(1)ApplicableoverrecommendedoperatingrangefromTA=25°C,f=1.0MHz,VCC=+1.8V.SymbolTestConditionMaxUnitsConditionsCI/OInput/OutputCapacitance(SDA)8pFVI/O=0VCINInputCapacitance(A0,A1,A2,SCL)6pFVIN=0VDCCharacteristicsApplicableoverrecommendedoperatingrangef