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FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page1Two-WireSerialEEPROM64K(8-bitwide)FEATURESLowvoltageandlowpoweroperations:FT24C64A:VCC=1.
8Vto5.
5V32bytespagewritemode.
Partialpagewriteoperationallowed.
Internallyorganized:8,192*8(64K).
Standard2-wirebi-directionalserialinterface.
Schmitttrigger,filteredinputsfornoiseprotection.
Self-timedWriteCycle(5msmaximum).
1000kHz(2.
5-5.
5V),400kHz(1.
8V)Compatibility.
Automaticerasebeforewriteoperation.
Writeprotectpinforhardwaredataprotection.
Highreliability:typically1,000,000cyclesendurance.
100yearsdataretention.
Industrialtemperaturerange(-40℃to85℃).
Standard8-leadDIP/SOP/MSOP/TSSOP/DFNand5-leadSOT23/TSOT23Pb-freepackages.
DESCRIPTIONTheFT24C64Aseriesare65,536bitsofserialElectricalErasableandProgrammableReadOnlyMemory,commonlyknownasEEPROM.
Theyareorganizedas8192wordsof8bits(onebyte)each.
ThedevicesarefabricatedwithproprietaryadvancedCMOSprocessforlowpowerandlowvoltageapplications.
Thesedevicesareavailableinstandard8-leadDIP,8-leadSOP,8-leadMSOP,8-leadTSSOP,8-leadDFN,5-leadSOT23,and5-leadTSOT23packages.
Astandard2-wireserialinterfaceisusedtoaddressallreadandwritefunctions.
OurextendedVCCrange(1.
8Vto5.
5V)devicesenableswidespectrumofapplications.
PINCONFIGURATIONPinNamePinFunctionA2,A1,A0DeviceAddressInputsSDASerialDataInput/OpenDrainOutputSCLSerialClockInputWPWriteProtectNCNo-ConnectVCCPowerSupplyGNDGroundFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page2AllthesepackagingtypescomeinPb-freecertified.
ABSOLUTEMAXIMUMRATINGSIndustrialoperatingtemperature:-40℃to85℃Storagetemperature:-50℃to125℃Inputvoltageonanypinrelativetoground:-0.
3VtoVCC+0.
3VMaximumvoltage:8VESDProtectiononallpins:>4000V*Stressesexceedthoselistedunder"AbsoluteMaximumRating"maycausepermanentdamagetothedevice.
Functionaloperationofthedeviceatconditionsbeyondthoselistedinthespecificationisnotguaranteed.
Prolongedexposuretoextremeconditionsmayaffectdevicereliabilityorfunctionality.
Start/StopControlLogicSlaveAddressMonitorSerialBusControlLogicDataAddressCounterPgmHighVoltageGenerationPageDataLatchEEPROMARRAYColumnDecoderDataRegSenseAmpDataout/ACKRowDecoderSDAWPSCLA0A1A2BlockDiagramFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page3PINDESCRIPTIONS(A)DEVICE/CHIPSELECTADDRESSES(A2,A1,A0)ThesearethechipselectinputsignalsfortheserialEEPROMdevices.
Typically,thesesignalsarehardwiredtoeitherVIHorVIL.
Ifleftunconnected,theyareinternallyrecognizedasVIL.
(B)SERIALCLOCK(SCL)TherisingedgeofthisSCLinputistolatchdataintotheEEPROMdevicewhilethefallingedgeofthisclockistoclockdataoutoftheEEPROMdevice.
(C)SERIALDATALINE(SDA)SDAdatalineisabi-directionalsignalfortheserialdevices.
Itisanopendrainoutputsignalandcanbewired-ORwithotheropen-drainoutputdevices.
(D)WRITEPROTECT(WP)TheFT24C64AdeviceshaveaWPpintoprotectthewholeEEPROMarrayfromprogramming.
ProgrammingoperationsareallowedifWPpinisleftun-connectedorinputtoVIL.
ConverselyallprogrammingfunctionsaredisabledifWPpinisconnectedtoVIHorVCC.
ReadoperationsisnotaffectedbytheWPpin'sinputlevel.
MEMORYORGANIZATIONTheFT24C64Adeviceshave256pagesrespectively.
Sinceeachpagehas32bytes,randomwordaddressingtoFT24C64Awillrequire13bitsdatawordaddressesrespectively.
DEVICEOPERATION(A)SERIALCLOCKANDDATATRANSITIONSTheSDApinistypicallypulledtohighbyanexternalresistor.
DataisallowedtochangeonlywhenSerialclockSCLisatVIL.
AnySDAsignaltransitionmayinterpretaseitheraSTARTorSTOPconditionasdescribedbelow.
(B)STARTCONDITIONWithSCL≥VIH,aSDAtransitionfromhightolowisinterpretedasaSTARTcondition.
AllvalidcommandsmustbeginwithaSTARTcondition.
(C)STOPCONDITIONWithSCL≥VIH,aSDAtransitionfromlowtohighisinterpretedasaSTOPcondition.
AllvalidreadorwritecommandsendwithaSTOPcondition.
ThedevicegoesintotheSTANDBYmodeifitisafterareadcommand.
ASTOPconditionafterpageorbytewritecommandwilltriggerthechipintotheSTANDBYmodeaftertheself-timedinternalprogrammingfinish(seeFigure1).
(D)ACKNOWLEDGEThe2-wireprotocoltransmitsaddressanddatatoandfromtheEEPROMin8bitwords.
TheEEPROMacknowledgesthedataoraddressbyoutputtinga"0"afterreceivingeachword.
TheACKNOWLEDGEsignaloccursonthe9thserialclockaftereachword.
(E)STANDBYMODETheEEPROMgoesintolowpowerSTANDBYmodeafterafreshpowerup,afterreceivingaSTOPbitinreadmode,oraftercompletingaself-timeinternalprogrammingoperation.
FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page4Figure1:TimingdiagramforSTARTandSTOPconditionsFigure2:TimingdiagramforoutputACKNOWLEDGEDEVICEADDRESSINGThe2-wireserialbusprotocolmandatesan8bitsdeviceaddresswordafteraSTARTbitconditiontoinvokeavalidreadorwritecommand.
Thefirstfourmostsignificantbitsofthedeviceaddressmustbe1010,whichiscommontoallserialEEPROMdevices.
Thenextthreebitsaredeviceaddressbits.
Thesethreedeviceaddressbits(5th,6thand7th)aretomatchwiththeexternalchipselect/addresspinstates.
Ifamatchismade,theEEPROMdeviceoutputsanACKNOWLEDGEsignalafterthe8thread/writebit,otherwisethechipwillgointoSTANDBYmode.
However,matchingmaynotbeneededforsomeoralldeviceaddressbits(5th,6thand7th)asnotedbelow.
Thelastor8thbitisaread/writecommandbit.
Ifthe8thbitisatVIHthenthechipgoesintoreadmode.
Ifa"0"isdetected,thedeviceentersprogrammingmode.
SCLSDASTARTConditionSTOPConditionDataDataValidTransitionSCLDatainDataoutSTARTConditionACKFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page5WRITEOPERATIONS(A)BYTEWRITEAwriteoperationrequirestwo8-bitdatawordaddressfollowingthedeviceaddresswordandACKNOWLEDGEsignal.
Uponreceiptofthisaddress,theEEPROMwillrespondwitha"0"andthenclockinthefirst8-bitdataword.
Followingreceiptofthe8-bitdataword,theEEPROMwillagainoutputa"0".
Theaddressingdevice,suchasamicrocontroller,mustterminatethewritesequencewithaSTOPcondition.
AtthistimetheEEPROMentersintoaninternally-timedwritecyclestate.
AllinputsaredisabledduringthiswritecycleandtheEEPROMwillnotresponduntilthewritingiscompleted(Figure3).
(B)PAGEWRITEThe64KEEPROMarecapableof32-bytepagewrite.
Apagewriteisinitiatedthesamewayasabytewrite,butthemicrocontrollerdoesnotsendaSTOPconditionafterthefirstdatawordisclockedin.
Themicrocontrollercantransmitupto31moredatawordsaftertheEEPROMacknowledgesreceiptofthefirstdataword.
TheEEPROMwillrespondwitha"0"aftereachdatawordisreceived.
ThemicrocontrollermustterminatethepagewritesequencewithaSTOPcondition(seeFigure4).
Thelowerfivebitsofthedatawordaddressareinternallyincrementedfollowingthereceiptofeachdataword.
Thehigherdatawordaddressbitsarenotincremented,retainingthememorypagerowlocation.
Ifmorethan32datawordsaretransmittedtotheEEPROM,thedatawordaddresswill"rollover"andthepreviousdatawillbeoverwritten.
(C)ACKNOWLEDGEPOLLINGACKNOWLEDGEpollingmaybeusedtopolltheprogrammingstatusduringaself-timedinternalprogramming.
Byissuingavalidreadorwriteaddresscommand,theEEPROMwillnotacknowledgeatthe9thclockcycleifthedeviceisstillintheself-timedprogrammingmode.
However,iftheprogrammingcompletesandthechiphasreturnedtotheSTANDBYmode,thedevicewillreturnavalidACKNOWLEDGEsignalatthe9thclockcycle.
READOPERATIONSThereadcommandissimilartothewritecommandexceptthe8thread/writebitinaddresswordissetto"1".
Thethreereadoperationmodesaredescribedasfollows:(A)CURRENTADDRESSREADTheEEPROMinternaladdresswordcountermaintainsthelastreadorwriteaddressplusoneifthepowersupplytothedevicehasnotbeencutoff.
Toinitiateacurrentaddressreadoperation,themicro-controllerissuesaSTARTbitandavaliddeviceaddresswordwiththeread/writebit(8th)setto"1".
TheEEPROMwillresponsewithanACKNOWLEDGEsignalonthe9thserialclockcycle.
An8-bitdatawordwillthenbeseriallyclockedout.
Theinternaladdresswordcounterwillthenautomaticallyincreasebyone.
Forcurrentaddressreadthemicro-controllerwillnotissueanACKNOWLEDGEsignalonthe18thclockcycle.
Themicro-controllerissuesavalidSTOPbitafterthe18thclockcycletoterminatethereadoperation.
ThedevicethenreturnstoSTANDBYmode(seeFigure5).
(B)SEQUENTIALREADThesequentialreadisverysimilartocurrentaddressread.
Themicro-controllerissuesaSTARTbitandavaliddeviceaddresswordwithread/writebit(8th)setto"1".
TheEEPROMwillresponsewithanACKNOWLEDGEsignalonthe9thserialclockcycle.
An8-bitdatawordwillthenbeseriallyclockedout.
Meanwhiletheinternallyaddresswordcounterwillthenautomaticallyincreasebyone.
FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page6Unlikecurrentaddressread,themicro-controllersendsanACKNOWLEDGEsignalonthe18thclockcyclesignalingtheEEPROMdevicethatitwantsanotherbyteofdata.
UponreceivingtheACKNOWLEDGEsignal,theEEPROMwillseriallyclockedoutan8-bitdatawordbasedontheincrementedinternaladdresscounter.
Ifthemicro-controllerneedsanotherdata,itsendsoutanACKNOWLEDGEsignalonthe27thclockcycle.
Another8-bitdatawordwillthenbeseriallyclockedout.
Thissequentialreadcontinuesaslongasthemicro-controllersendsanACKNOWLEDGEsignalafterreceivinganewdataword.
Whentheinternaladdresscounterreachesitsmaximumvalidaddress,itrollsovertothebeginningofthememoryarrayaddress.
Similartocurrentaddressread,themicro-controllercanterminatethesequentialreadbynotacknowledgingthelastdatawordreceived,butsendingaSTOPbitafterwardsinstead(Figure6).
(C)RANDOMREADRandomreadisatwo-stepsprocess.
Thefirststepistoinitializetheinternaladdresscounterwithatargetreadaddressusinga"dummywrite"instruction.
Thesecondstepisacurrentaddressread.
Toinitializetheinternaladdresscounterwithatargetreadaddress,themicro-controllerissuesaSTARTbitfirst,followsbyavaliddeviceaddresswiththeread/writebit(8th)setto"0".
TheEEPROMwillthenacknowledge.
Themicro-controllerwillthensendtwoaddresswords.
AgaintheEEPROMwillacknowledge.
InsteadofsendingavalidwrittendatatotheEEPROM,themicro-controllerperformsacurrentaddressreadinstructiontoreadthedata.
NotethatonceaSTARTbitisissued,theEEPROMwillresettheinternalprogrammingprocessandcontinuetoexecutethenewinstruction-whichistoreadthecurrentaddress(Figure7).
***SDALINESTARTMSBDEVICEADDRESSLSBR/WACKWRITEFIRSTWORDADDRESSMSBACKACKACKLSBSECONDWORDADDRESSSTOPDATA#Figure3:ByteWrite***SDALINESTARTMSBDEVICEADDRESSLSBR/WACKWRITEFIRSTWORDADDRESS(N)MSBACKACKACKLSBSECONDWORDADDRESS(N)STOPDATA(N)ACKDATA(N+X)#.
.
.
Figure4:PageWriteFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page7Figure5:CurrentAddressReadSDALINEDEVICEADDRESSR/WACKREADACKNOACKSTOPDATA(N)DATA(N+1)DATA(N+2)DATA(N+3)ACKACKACKFigure6:SequentialReadSTARTMSBDEVICEADDRESSLSBR/WACKREADACKNOACKSTOPDATA(N)***STARTMSBDEVICEADDRESSLSBR/WACKWRITEFIRSTWORDADDRESS(N)MSBACKLSBSECONDWORDADDRESS(N)ACKSDALINE#Figure7:RandomReadNotes:1)*=Don'tCarebitsFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page8LOWHIGHtttLOWttFRtSU.
DATtHD.
DATtHD.
STAtSU,STAtSU.
STOtDHtBUFtAASCLSDAINSDAOUTFigure8:SCLandSDABusTimingElectricalSpecifications(A)Power-UpRequirementsDuringapower-upsequence,theVCCsuppliedtothedeviceshouldmonotonicallyrisefromGNDtotheminimumVCClevel,withaslewratenofasterthan0.
05V/μsandnoslowerthen0.
1V/ms.
AdecouplingcapshouldbeconnectedtotheVCCPADwhichisnosmallerthan10nF.
(B)DeviceResetTopreventinadvertentwriteoperationsoranyotherspuriouseventsfromoccurringduringapower-upsequence,thisdeviceincludesaPower-onReset(POR)circuit.
Uponpower-up,thedevicewillnotrespondtoanycommandsuntiltheVCClevelcrossestheinternalvoltagethreshold(VPOR)thatbringsthedeviceoutofResetandintoStandbymode.
ThesystemdesignermustensuretheinstructionsarenotsenttothedeviceuntiltheVCCsupplyhasreachedastablevaluegreaterthanorequaltotheminimumVCClevel.
Figure9:PoweronandPowerdownIfaneventoccursinthesystemwheretheVCClevelsuppliedtothedevicedropsbelowthemaximumVPORlevelspecified,itisrecommendedthatafullpowercyclesequencebeperformedbyfirstdrivingtheVCCpintoGND,waitingatleasttheminimumtPOFFtimeandthenperforminganewpower-upsequenceincompliancewiththerequirementsdefinedinthissection.
FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page9ACCHARACTERISTICSSymbolParameter1.
8V2.
5-5.
5VUnitMinMaxMinMaxfSCLClockfrequency,SCL4001000kHztLOWClockpulsewidthlow1.
20.
6stHIGHClockpulsewidthhigh0.
40.
3stINoisesuppressiontime(1)120120nstAAClocklowtodataoutvalid1.
20.
55stBUFTimethebusmustbefreebeforeanewtransmissioncanstart(1)1.
31.
2stHD.
STASTARTholdtime0.
60.
6stSU.
STASTARTset-uptime0.
60.
6stHD.
DATDatainholdtime00stSU.
DATDatainset-uptime100100nstRInputrisetime(1)300300nstFInputfalltime(1)300300nstSU.
STOSTOPset-uptime0.
60.
6stDHDateoutholdtime20050nstPWR,RVccslewrateatpowerup0.
1500.
150V/mstPUPTimerequiredafterVCCisstablebeforethedevicecanacceptcommands100100stPOFFMinimumtimeatVcc=0Vbetweenpowercycles500500mstWRWritecycletime55msEndurance(1)25oC,PageMode,3.
3V1,000,000WriteCyclesNotes:1.
ThisParameterisexpectedbycharacterizationbutarenotfullyscreenedbytest.
2.
ACMeasurementconditions:RL(ConnectstoVcc):1.
3KInputPulseVoltages:0.
3Vccto0.
7VccInputandoutputtimingreferenceVoltages:0.
5VccFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page10DCCHARACTERISTICSSymbolParameterTestConditionsMinTypicalMaxUnitsVCC124C**AsupplyVCC1.
85.
5VICC1SupplyreadcurrentVCC@5.
5VSCL=400kHz0.
41.
0mAICC2SupplywritecurrentVCC@5.
5VSCL=400kHz2.
03.
0mAISB1SupplycurrentVCC@1.
8V,VIN=VCCorVSSTxx-page11FT24CxxA-XXX-XDensityPackageTemperatureRangeVccHSFPackagingOrderingCode64kbitsDIP8-40℃-85℃1.
8V-5.
5VRoHSTubeFT24C64A-TDR-BGreenTubeFT24C64A-TDG-BSOP8-40℃-85℃1.
8V-5.
5VRoHSTubeFT24C64A-TSR-BTapeandReelFT24C64A-TSR-TGreenTubeFT24C64A-TSG-BTapeandReelFT24C64A-TSG-TMSOP8-40℃-85℃1.
8V-5.
5VRoHSTubeFT24C64A-TMR-BTapeandReelFT24C64A-TMR-TGreenTubeFT24C64A-TMG-BTapeandReelFT24C64A-TMG-TTSSOP8-40℃-85℃1.
8V-5.
5VRoHSTubeFT24C64A-TTR-BTapeandReelFT24C64A-TTR-TGreenTubeFT24C64A-TTG-BTapeandReelFT24C64A-TTG-TSOT23-5-40℃-85℃1.
8V-5.
5VRoHSTapeandReelFT24C64A-TLR-TGreenTapeandReelFT24C64A-TLG-TTSOT23-5-40℃-85℃1.
8V-5.
5VRoHSTapeandReelFT24C64A-TPR-TGreenTapeandReelFT24C64A-TPG-TDFN8-40℃-85℃1.
8V-5.
5VRoHSTapeandReelFT24C64A-TNR-TGreenTapeandReelFT24C64A-TNG-T*TLR/TLG/TPR/TPG:ThedeviceaddressA2,A1,andA0bitsmustbesettozero.
Density64:64kbitsPackageD:DIP8S:SOP8M:MSOP8T:TSSOP8L:SOT23-5P:TSOT23-5N:DFN8PackagingB:TubeT:TapeandReelHSFR:RoHSG:GreenTemp.
RangeT:-40℃-85℃FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page12DIP8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA3.
7104.
3100.
1460.
170A10.
5100.
020A23.
2003.
6000.
1260.
142B0.
3800.
5700.
0150.
022B11.
524(BSC)0.
060(BSC)C0.
2040.
3600.
0080.
014D9.
0009.
4000.
3540.
370E6.
2006.
6000.
2440.
260E17.
3207.
9200.
2880.
312e2.
540(BSC)0.
100(BSC)L3.
0003.
6000.
1180.
142E28.
4009.
0000.
3310.
354FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page13SOP8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA1.
3501.
7500.
0530.
069A10.
1000.
2500.
0040.
010A21.
3501.
5500.
0530.
061b0.
3300.
5100.
0130.
020c0.
1700.
2500.
0060.
010D4.
7005.
1000.
1850.
200E3.
8004.
0000.
1500.
157E15.
8006.
2000.
2280.
244e1.
270(BSC)0.
050(BSC)L0.
4001.
2700.
0160.
050θ0°8°0°8°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page14MSOP8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA0.
8201.
1000.
3200.
043A10.
0200.
1500.
0010.
006A20.
7500.
9500.
0300.
037b0.
2500.
3800.
0100.
015c0.
0900.
2300.
0040.
009D2.
9003.
1000.
1140.
122e0.
65(BSC)0.
026(BSC)E2.
9003.
1000.
1140.
122E14.
7505.
0500.
1870.
199L0.
4000.
8000.
0160.
031θ0°6°0°6°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page15TSSOP8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxD2.
9003.
1000.
1140.
122E4.
3004.
5000.
1690.
177b0.
1900.
3000.
0070.
012c0.
0900.
2000.
0040.
008E16.
2506.
5500.
2460.
258A1.
1000.
043A20.
8001.
0000.
0310.
039A10.
0200.
1500.
0010.
006e0.
65(BSC)0.
026(BSC)L0.
5000.
7000.
0200.
028H0.
25(TYP)0.
01(TYP)θ1°7°1°7°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page16SOT-23-5PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA1.
0501.
2500.
0410.
049A10.
0000.
1000.
0000.
004A21.
0501.
1500.
0410.
045b0.
3000.
5000.
0120.
020c0.
1000.
2000.
0040.
008D2.
8203.
0200.
1110.
119E1.
5001.
7000.
0590.
067E12.
6502.
9500.
1040.
116e0.
95(BSC)0.
037(BSC)e11.
8002.
0000.
0710.
079L0.
3000.
6000.
0120.
024θ0°8°0°6°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page17TSOT-23-5PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA0.
7000.
9000.
0280.
035A10.
0000.
1000.
0000.
004A20.
7000.
8000.
0280.
031b0.
3500.
5000.
0140.
020c0.
0800.
2000.
0030.
008D2.
8203.
0200.
1110.
119E1.
6001.
7000.
0630.
067E12.
6502.
9500.
1040.
116e0.
95(BSC)0.
037(BSC)e11.
90(BSC)0.
075(BSC)L0.
3000.
6000.
0120.
024θ0°8°0°8°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page18DFN8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersMinNomMaxA0.
700.
750.
80A1-0.
020.
05b0.
180.
250.
03c0.
180.
200.
25D1.
902.
002.
10D21.
50REFe0.
50BSCNd1.
50BSCE2.
903.
003.
10E21.
60REFL0.
300.
400.
50h0.
200.
250.
30FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
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1DS24C64A-Txx-page19FremontMicroDevices(SZ)Limited#5-8,10/F,ChanghongBuilding,Ke-JiNan12Road,NanshanDistrict,ShenzhenTel:(86755)86117811Fax:(86755)86117810FremontMicroDevices(HongKong)Limited#16,16/F,BlkB,VeristrongIndustrialCentre,34-36AuPuiWanStreet,Fotan,Shatin,HongKongTel:(852)27811186Fax:(852)27811144WebSite:http://www.
fremontmicro.
com/*Informationfurnishedisbelievedtobeaccurateandreliable.
However,FremontMicroDevices,Incorporated(BVI)assumesnoresponsibilityfortheconsequencesofuseofsuchinformationorforanyinfringementofpatentsofotherrightsofthirdpartieswhichmayresultfromitsuse.
NolicenseisgrantedbyimplicationorotherwiseunderanypatentrightsofFremontMicroDevices,Incorporated(BVI).
Specificationsmentionedinthispublicationaresubjecttochangewithoutnotice.
Thispublicationsupersedesandreplacesallinformationpreviouslysupplied.
FremontMicroDevices,Incorporated(BVI)productsarenotauthorizedforuseascriticalcomponentsinlifesupportdevicesorsystemswithoutexpresswrittenapprovalofFremontMicroDevices,Incorporated(BVI).
TheFMDlogoisaregisteredtrademarkofFremontMicroDevices,Incorporated(BVI).
Allothernamesarethepropertyoftheirrespectiveowners.
Rev1.
1DS24C64A-Txx-page1Two-WireSerialEEPROM64K(8-bitwide)FEATURESLowvoltageandlowpoweroperations:FT24C64A:VCC=1.
8Vto5.
5V32bytespagewritemode.
Partialpagewriteoperationallowed.
Internallyorganized:8,192*8(64K).
Standard2-wirebi-directionalserialinterface.
Schmitttrigger,filteredinputsfornoiseprotection.
Self-timedWriteCycle(5msmaximum).
1000kHz(2.
5-5.
5V),400kHz(1.
8V)Compatibility.
Automaticerasebeforewriteoperation.
Writeprotectpinforhardwaredataprotection.
Highreliability:typically1,000,000cyclesendurance.
100yearsdataretention.
Industrialtemperaturerange(-40℃to85℃).
Standard8-leadDIP/SOP/MSOP/TSSOP/DFNand5-leadSOT23/TSOT23Pb-freepackages.
DESCRIPTIONTheFT24C64Aseriesare65,536bitsofserialElectricalErasableandProgrammableReadOnlyMemory,commonlyknownasEEPROM.
Theyareorganizedas8192wordsof8bits(onebyte)each.
ThedevicesarefabricatedwithproprietaryadvancedCMOSprocessforlowpowerandlowvoltageapplications.
Thesedevicesareavailableinstandard8-leadDIP,8-leadSOP,8-leadMSOP,8-leadTSSOP,8-leadDFN,5-leadSOT23,and5-leadTSOT23packages.
Astandard2-wireserialinterfaceisusedtoaddressallreadandwritefunctions.
OurextendedVCCrange(1.
8Vto5.
5V)devicesenableswidespectrumofapplications.
PINCONFIGURATIONPinNamePinFunctionA2,A1,A0DeviceAddressInputsSDASerialDataInput/OpenDrainOutputSCLSerialClockInputWPWriteProtectNCNo-ConnectVCCPowerSupplyGNDGroundFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page2AllthesepackagingtypescomeinPb-freecertified.
ABSOLUTEMAXIMUMRATINGSIndustrialoperatingtemperature:-40℃to85℃Storagetemperature:-50℃to125℃Inputvoltageonanypinrelativetoground:-0.
3VtoVCC+0.
3VMaximumvoltage:8VESDProtectiononallpins:>4000V*Stressesexceedthoselistedunder"AbsoluteMaximumRating"maycausepermanentdamagetothedevice.
Functionaloperationofthedeviceatconditionsbeyondthoselistedinthespecificationisnotguaranteed.
Prolongedexposuretoextremeconditionsmayaffectdevicereliabilityorfunctionality.
Start/StopControlLogicSlaveAddressMonitorSerialBusControlLogicDataAddressCounterPgmHighVoltageGenerationPageDataLatchEEPROMARRAYColumnDecoderDataRegSenseAmpDataout/ACKRowDecoderSDAWPSCLA0A1A2BlockDiagramFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page3PINDESCRIPTIONS(A)DEVICE/CHIPSELECTADDRESSES(A2,A1,A0)ThesearethechipselectinputsignalsfortheserialEEPROMdevices.
Typically,thesesignalsarehardwiredtoeitherVIHorVIL.
Ifleftunconnected,theyareinternallyrecognizedasVIL.
(B)SERIALCLOCK(SCL)TherisingedgeofthisSCLinputistolatchdataintotheEEPROMdevicewhilethefallingedgeofthisclockistoclockdataoutoftheEEPROMdevice.
(C)SERIALDATALINE(SDA)SDAdatalineisabi-directionalsignalfortheserialdevices.
Itisanopendrainoutputsignalandcanbewired-ORwithotheropen-drainoutputdevices.
(D)WRITEPROTECT(WP)TheFT24C64AdeviceshaveaWPpintoprotectthewholeEEPROMarrayfromprogramming.
ProgrammingoperationsareallowedifWPpinisleftun-connectedorinputtoVIL.
ConverselyallprogrammingfunctionsaredisabledifWPpinisconnectedtoVIHorVCC.
ReadoperationsisnotaffectedbytheWPpin'sinputlevel.
MEMORYORGANIZATIONTheFT24C64Adeviceshave256pagesrespectively.
Sinceeachpagehas32bytes,randomwordaddressingtoFT24C64Awillrequire13bitsdatawordaddressesrespectively.
DEVICEOPERATION(A)SERIALCLOCKANDDATATRANSITIONSTheSDApinistypicallypulledtohighbyanexternalresistor.
DataisallowedtochangeonlywhenSerialclockSCLisatVIL.
AnySDAsignaltransitionmayinterpretaseitheraSTARTorSTOPconditionasdescribedbelow.
(B)STARTCONDITIONWithSCL≥VIH,aSDAtransitionfromhightolowisinterpretedasaSTARTcondition.
AllvalidcommandsmustbeginwithaSTARTcondition.
(C)STOPCONDITIONWithSCL≥VIH,aSDAtransitionfromlowtohighisinterpretedasaSTOPcondition.
AllvalidreadorwritecommandsendwithaSTOPcondition.
ThedevicegoesintotheSTANDBYmodeifitisafterareadcommand.
ASTOPconditionafterpageorbytewritecommandwilltriggerthechipintotheSTANDBYmodeaftertheself-timedinternalprogrammingfinish(seeFigure1).
(D)ACKNOWLEDGEThe2-wireprotocoltransmitsaddressanddatatoandfromtheEEPROMin8bitwords.
TheEEPROMacknowledgesthedataoraddressbyoutputtinga"0"afterreceivingeachword.
TheACKNOWLEDGEsignaloccursonthe9thserialclockaftereachword.
(E)STANDBYMODETheEEPROMgoesintolowpowerSTANDBYmodeafterafreshpowerup,afterreceivingaSTOPbitinreadmode,oraftercompletingaself-timeinternalprogrammingoperation.
FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page4Figure1:TimingdiagramforSTARTandSTOPconditionsFigure2:TimingdiagramforoutputACKNOWLEDGEDEVICEADDRESSINGThe2-wireserialbusprotocolmandatesan8bitsdeviceaddresswordafteraSTARTbitconditiontoinvokeavalidreadorwritecommand.
Thefirstfourmostsignificantbitsofthedeviceaddressmustbe1010,whichiscommontoallserialEEPROMdevices.
Thenextthreebitsaredeviceaddressbits.
Thesethreedeviceaddressbits(5th,6thand7th)aretomatchwiththeexternalchipselect/addresspinstates.
Ifamatchismade,theEEPROMdeviceoutputsanACKNOWLEDGEsignalafterthe8thread/writebit,otherwisethechipwillgointoSTANDBYmode.
However,matchingmaynotbeneededforsomeoralldeviceaddressbits(5th,6thand7th)asnotedbelow.
Thelastor8thbitisaread/writecommandbit.
Ifthe8thbitisatVIHthenthechipgoesintoreadmode.
Ifa"0"isdetected,thedeviceentersprogrammingmode.
SCLSDASTARTConditionSTOPConditionDataDataValidTransitionSCLDatainDataoutSTARTConditionACKFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page5WRITEOPERATIONS(A)BYTEWRITEAwriteoperationrequirestwo8-bitdatawordaddressfollowingthedeviceaddresswordandACKNOWLEDGEsignal.
Uponreceiptofthisaddress,theEEPROMwillrespondwitha"0"andthenclockinthefirst8-bitdataword.
Followingreceiptofthe8-bitdataword,theEEPROMwillagainoutputa"0".
Theaddressingdevice,suchasamicrocontroller,mustterminatethewritesequencewithaSTOPcondition.
AtthistimetheEEPROMentersintoaninternally-timedwritecyclestate.
AllinputsaredisabledduringthiswritecycleandtheEEPROMwillnotresponduntilthewritingiscompleted(Figure3).
(B)PAGEWRITEThe64KEEPROMarecapableof32-bytepagewrite.
Apagewriteisinitiatedthesamewayasabytewrite,butthemicrocontrollerdoesnotsendaSTOPconditionafterthefirstdatawordisclockedin.
Themicrocontrollercantransmitupto31moredatawordsaftertheEEPROMacknowledgesreceiptofthefirstdataword.
TheEEPROMwillrespondwitha"0"aftereachdatawordisreceived.
ThemicrocontrollermustterminatethepagewritesequencewithaSTOPcondition(seeFigure4).
Thelowerfivebitsofthedatawordaddressareinternallyincrementedfollowingthereceiptofeachdataword.
Thehigherdatawordaddressbitsarenotincremented,retainingthememorypagerowlocation.
Ifmorethan32datawordsaretransmittedtotheEEPROM,thedatawordaddresswill"rollover"andthepreviousdatawillbeoverwritten.
(C)ACKNOWLEDGEPOLLINGACKNOWLEDGEpollingmaybeusedtopolltheprogrammingstatusduringaself-timedinternalprogramming.
Byissuingavalidreadorwriteaddresscommand,theEEPROMwillnotacknowledgeatthe9thclockcycleifthedeviceisstillintheself-timedprogrammingmode.
However,iftheprogrammingcompletesandthechiphasreturnedtotheSTANDBYmode,thedevicewillreturnavalidACKNOWLEDGEsignalatthe9thclockcycle.
READOPERATIONSThereadcommandissimilartothewritecommandexceptthe8thread/writebitinaddresswordissetto"1".
Thethreereadoperationmodesaredescribedasfollows:(A)CURRENTADDRESSREADTheEEPROMinternaladdresswordcountermaintainsthelastreadorwriteaddressplusoneifthepowersupplytothedevicehasnotbeencutoff.
Toinitiateacurrentaddressreadoperation,themicro-controllerissuesaSTARTbitandavaliddeviceaddresswordwiththeread/writebit(8th)setto"1".
TheEEPROMwillresponsewithanACKNOWLEDGEsignalonthe9thserialclockcycle.
An8-bitdatawordwillthenbeseriallyclockedout.
Theinternaladdresswordcounterwillthenautomaticallyincreasebyone.
Forcurrentaddressreadthemicro-controllerwillnotissueanACKNOWLEDGEsignalonthe18thclockcycle.
Themicro-controllerissuesavalidSTOPbitafterthe18thclockcycletoterminatethereadoperation.
ThedevicethenreturnstoSTANDBYmode(seeFigure5).
(B)SEQUENTIALREADThesequentialreadisverysimilartocurrentaddressread.
Themicro-controllerissuesaSTARTbitandavaliddeviceaddresswordwithread/writebit(8th)setto"1".
TheEEPROMwillresponsewithanACKNOWLEDGEsignalonthe9thserialclockcycle.
An8-bitdatawordwillthenbeseriallyclockedout.
Meanwhiletheinternallyaddresswordcounterwillthenautomaticallyincreasebyone.
FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page6Unlikecurrentaddressread,themicro-controllersendsanACKNOWLEDGEsignalonthe18thclockcyclesignalingtheEEPROMdevicethatitwantsanotherbyteofdata.
UponreceivingtheACKNOWLEDGEsignal,theEEPROMwillseriallyclockedoutan8-bitdatawordbasedontheincrementedinternaladdresscounter.
Ifthemicro-controllerneedsanotherdata,itsendsoutanACKNOWLEDGEsignalonthe27thclockcycle.
Another8-bitdatawordwillthenbeseriallyclockedout.
Thissequentialreadcontinuesaslongasthemicro-controllersendsanACKNOWLEDGEsignalafterreceivinganewdataword.
Whentheinternaladdresscounterreachesitsmaximumvalidaddress,itrollsovertothebeginningofthememoryarrayaddress.
Similartocurrentaddressread,themicro-controllercanterminatethesequentialreadbynotacknowledgingthelastdatawordreceived,butsendingaSTOPbitafterwardsinstead(Figure6).
(C)RANDOMREADRandomreadisatwo-stepsprocess.
Thefirststepistoinitializetheinternaladdresscounterwithatargetreadaddressusinga"dummywrite"instruction.
Thesecondstepisacurrentaddressread.
Toinitializetheinternaladdresscounterwithatargetreadaddress,themicro-controllerissuesaSTARTbitfirst,followsbyavaliddeviceaddresswiththeread/writebit(8th)setto"0".
TheEEPROMwillthenacknowledge.
Themicro-controllerwillthensendtwoaddresswords.
AgaintheEEPROMwillacknowledge.
InsteadofsendingavalidwrittendatatotheEEPROM,themicro-controllerperformsacurrentaddressreadinstructiontoreadthedata.
NotethatonceaSTARTbitisissued,theEEPROMwillresettheinternalprogrammingprocessandcontinuetoexecutethenewinstruction-whichistoreadthecurrentaddress(Figure7).
***SDALINESTARTMSBDEVICEADDRESSLSBR/WACKWRITEFIRSTWORDADDRESSMSBACKACKACKLSBSECONDWORDADDRESSSTOPDATA#Figure3:ByteWrite***SDALINESTARTMSBDEVICEADDRESSLSBR/WACKWRITEFIRSTWORDADDRESS(N)MSBACKACKACKLSBSECONDWORDADDRESS(N)STOPDATA(N)ACKDATA(N+X)#.
.
.
Figure4:PageWriteFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page7Figure5:CurrentAddressReadSDALINEDEVICEADDRESSR/WACKREADACKNOACKSTOPDATA(N)DATA(N+1)DATA(N+2)DATA(N+3)ACKACKACKFigure6:SequentialReadSTARTMSBDEVICEADDRESSLSBR/WACKREADACKNOACKSTOPDATA(N)***STARTMSBDEVICEADDRESSLSBR/WACKWRITEFIRSTWORDADDRESS(N)MSBACKLSBSECONDWORDADDRESS(N)ACKSDALINE#Figure7:RandomReadNotes:1)*=Don'tCarebitsFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page8LOWHIGHtttLOWttFRtSU.
DATtHD.
DATtHD.
STAtSU,STAtSU.
STOtDHtBUFtAASCLSDAINSDAOUTFigure8:SCLandSDABusTimingElectricalSpecifications(A)Power-UpRequirementsDuringapower-upsequence,theVCCsuppliedtothedeviceshouldmonotonicallyrisefromGNDtotheminimumVCClevel,withaslewratenofasterthan0.
05V/μsandnoslowerthen0.
1V/ms.
AdecouplingcapshouldbeconnectedtotheVCCPADwhichisnosmallerthan10nF.
(B)DeviceResetTopreventinadvertentwriteoperationsoranyotherspuriouseventsfromoccurringduringapower-upsequence,thisdeviceincludesaPower-onReset(POR)circuit.
Uponpower-up,thedevicewillnotrespondtoanycommandsuntiltheVCClevelcrossestheinternalvoltagethreshold(VPOR)thatbringsthedeviceoutofResetandintoStandbymode.
ThesystemdesignermustensuretheinstructionsarenotsenttothedeviceuntiltheVCCsupplyhasreachedastablevaluegreaterthanorequaltotheminimumVCClevel.
Figure9:PoweronandPowerdownIfaneventoccursinthesystemwheretheVCClevelsuppliedtothedevicedropsbelowthemaximumVPORlevelspecified,itisrecommendedthatafullpowercyclesequencebeperformedbyfirstdrivingtheVCCpintoGND,waitingatleasttheminimumtPOFFtimeandthenperforminganewpower-upsequenceincompliancewiththerequirementsdefinedinthissection.
FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page9ACCHARACTERISTICSSymbolParameter1.
8V2.
5-5.
5VUnitMinMaxMinMaxfSCLClockfrequency,SCL4001000kHztLOWClockpulsewidthlow1.
20.
6stHIGHClockpulsewidthhigh0.
40.
3stINoisesuppressiontime(1)120120nstAAClocklowtodataoutvalid1.
20.
55stBUFTimethebusmustbefreebeforeanewtransmissioncanstart(1)1.
31.
2stHD.
STASTARTholdtime0.
60.
6stSU.
STASTARTset-uptime0.
60.
6stHD.
DATDatainholdtime00stSU.
DATDatainset-uptime100100nstRInputrisetime(1)300300nstFInputfalltime(1)300300nstSU.
STOSTOPset-uptime0.
60.
6stDHDateoutholdtime20050nstPWR,RVccslewrateatpowerup0.
1500.
150V/mstPUPTimerequiredafterVCCisstablebeforethedevicecanacceptcommands100100stPOFFMinimumtimeatVcc=0Vbetweenpowercycles500500mstWRWritecycletime55msEndurance(1)25oC,PageMode,3.
3V1,000,000WriteCyclesNotes:1.
ThisParameterisexpectedbycharacterizationbutarenotfullyscreenedbytest.
2.
ACMeasurementconditions:RL(ConnectstoVcc):1.
3KInputPulseVoltages:0.
3Vccto0.
7VccInputandoutputtimingreferenceVoltages:0.
5VccFremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page10DCCHARACTERISTICSSymbolParameterTestConditionsMinTypicalMaxUnitsVCC124C**AsupplyVCC1.
85.
5VICC1SupplyreadcurrentVCC@5.
5VSCL=400kHz0.
41.
0mAICC2SupplywritecurrentVCC@5.
5VSCL=400kHz2.
03.
0mAISB1SupplycurrentVCC@1.
8V,VIN=VCCorVSSTxx-page11FT24CxxA-XXX-XDensityPackageTemperatureRangeVccHSFPackagingOrderingCode64kbitsDIP8-40℃-85℃1.
8V-5.
5VRoHSTubeFT24C64A-TDR-BGreenTubeFT24C64A-TDG-BSOP8-40℃-85℃1.
8V-5.
5VRoHSTubeFT24C64A-TSR-BTapeandReelFT24C64A-TSR-TGreenTubeFT24C64A-TSG-BTapeandReelFT24C64A-TSG-TMSOP8-40℃-85℃1.
8V-5.
5VRoHSTubeFT24C64A-TMR-BTapeandReelFT24C64A-TMR-TGreenTubeFT24C64A-TMG-BTapeandReelFT24C64A-TMG-TTSSOP8-40℃-85℃1.
8V-5.
5VRoHSTubeFT24C64A-TTR-BTapeandReelFT24C64A-TTR-TGreenTubeFT24C64A-TTG-BTapeandReelFT24C64A-TTG-TSOT23-5-40℃-85℃1.
8V-5.
5VRoHSTapeandReelFT24C64A-TLR-TGreenTapeandReelFT24C64A-TLG-TTSOT23-5-40℃-85℃1.
8V-5.
5VRoHSTapeandReelFT24C64A-TPR-TGreenTapeandReelFT24C64A-TPG-TDFN8-40℃-85℃1.
8V-5.
5VRoHSTapeandReelFT24C64A-TNR-TGreenTapeandReelFT24C64A-TNG-T*TLR/TLG/TPR/TPG:ThedeviceaddressA2,A1,andA0bitsmustbesettozero.
Density64:64kbitsPackageD:DIP8S:SOP8M:MSOP8T:TSSOP8L:SOT23-5P:TSOT23-5N:DFN8PackagingB:TubeT:TapeandReelHSFR:RoHSG:GreenTemp.
RangeT:-40℃-85℃FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page12DIP8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA3.
7104.
3100.
1460.
170A10.
5100.
020A23.
2003.
6000.
1260.
142B0.
3800.
5700.
0150.
022B11.
524(BSC)0.
060(BSC)C0.
2040.
3600.
0080.
014D9.
0009.
4000.
3540.
370E6.
2006.
6000.
2440.
260E17.
3207.
9200.
2880.
312e2.
540(BSC)0.
100(BSC)L3.
0003.
6000.
1180.
142E28.
4009.
0000.
3310.
354FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page13SOP8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA1.
3501.
7500.
0530.
069A10.
1000.
2500.
0040.
010A21.
3501.
5500.
0530.
061b0.
3300.
5100.
0130.
020c0.
1700.
2500.
0060.
010D4.
7005.
1000.
1850.
200E3.
8004.
0000.
1500.
157E15.
8006.
2000.
2280.
244e1.
270(BSC)0.
050(BSC)L0.
4001.
2700.
0160.
050θ0°8°0°8°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page14MSOP8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA0.
8201.
1000.
3200.
043A10.
0200.
1500.
0010.
006A20.
7500.
9500.
0300.
037b0.
2500.
3800.
0100.
015c0.
0900.
2300.
0040.
009D2.
9003.
1000.
1140.
122e0.
65(BSC)0.
026(BSC)E2.
9003.
1000.
1140.
122E14.
7505.
0500.
1870.
199L0.
4000.
8000.
0160.
031θ0°6°0°6°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page15TSSOP8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxD2.
9003.
1000.
1140.
122E4.
3004.
5000.
1690.
177b0.
1900.
3000.
0070.
012c0.
0900.
2000.
0040.
008E16.
2506.
5500.
2460.
258A1.
1000.
043A20.
8001.
0000.
0310.
039A10.
0200.
1500.
0010.
006e0.
65(BSC)0.
026(BSC)L0.
5000.
7000.
0200.
028H0.
25(TYP)0.
01(TYP)θ1°7°1°7°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page16SOT-23-5PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA1.
0501.
2500.
0410.
049A10.
0000.
1000.
0000.
004A21.
0501.
1500.
0410.
045b0.
3000.
5000.
0120.
020c0.
1000.
2000.
0040.
008D2.
8203.
0200.
1110.
119E1.
5001.
7000.
0590.
067E12.
6502.
9500.
1040.
116e0.
95(BSC)0.
037(BSC)e11.
8002.
0000.
0710.
079L0.
3000.
6000.
0120.
024θ0°8°0°6°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page17TSOT-23-5PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersDimensionsInInchesMinMaxMinMaxA0.
7000.
9000.
0280.
035A10.
0000.
1000.
0000.
004A20.
7000.
8000.
0280.
031b0.
3500.
5000.
0140.
020c0.
0800.
2000.
0030.
008D2.
8203.
0200.
1110.
119E1.
6001.
7000.
0630.
067E12.
6502.
9500.
1040.
116e0.
95(BSC)0.
037(BSC)e11.
90(BSC)0.
075(BSC)L0.
3000.
6000.
0120.
024θ0°8°0°8°FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page18DFN8PACKAGEOUTLINEDIMENSIONSSymbolDimensionsInMillimetersMinNomMaxA0.
700.
750.
80A1-0.
020.
05b0.
180.
250.
03c0.
180.
200.
25D1.
902.
002.
10D21.
50REFe0.
50BSCNd1.
50BSCE2.
903.
003.
10E21.
60REFL0.
300.
400.
50h0.
200.
250.
30FremontMicroDevicesFT24C64A2020FremontMicroDevicesInc.
Rev1.
1DS24C64A-Txx-page19FremontMicroDevices(SZ)Limited#5-8,10/F,ChanghongBuilding,Ke-JiNan12Road,NanshanDistrict,ShenzhenTel:(86755)86117811Fax:(86755)86117810FremontMicroDevices(HongKong)Limited#16,16/F,BlkB,VeristrongIndustrialCentre,34-36AuPuiWanStreet,Fotan,Shatin,HongKongTel:(852)27811186Fax:(852)27811144WebSite:http://www.
fremontmicro.
com/*Informationfurnishedisbelievedtobeaccurateandreliable.
However,FremontMicroDevices,Incorporated(BVI)assumesnoresponsibilityfortheconsequencesofuseofsuchinformationorforanyinfringementofpatentsofotherrightsofthirdpartieswhichmayresultfromitsuse.
NolicenseisgrantedbyimplicationorotherwiseunderanypatentrightsofFremontMicroDevices,Incorporated(BVI).
Specificationsmentionedinthispublicationaresubjecttochangewithoutnotice.
Thispublicationsupersedesandreplacesallinformationpreviouslysupplied.
FremontMicroDevices,Incorporated(BVI)productsarenotauthorizedforuseascriticalcomponentsinlifesupportdevicesorsystemswithoutexpresswrittenapprovalofFremontMicroDevices,Incorporated(BVI).
TheFMDlogoisaregisteredtrademarkofFremontMicroDevices,Incorporated(BVI).
Allothernamesarethepropertyoftheirrespectiveowners.
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