25LC320

2004MicrochipTechnologyInc.DS21227E-page125AA320/25LC320/25C320DeviceSelectionTableFeatures:•Low-powerCMOStechnology:-Writecurrent:3mAmaximum-Readcurrent:500µAtypical-Standbycurrent:500nAtypical4096x8bitorganization32bytepageWritecycletime:5msmaximumSelf-timederaseandwritecyclesBlockwriteprotection:-Protectnone,1/4,1/2orallofarrayBuilt-inwriteprotection:-Poweron/offdataprotectioncircuitry-Writeenablelatch-Write-protectpinSequentialreadHighreliability:-Endurance:1ME/Wcycles-Dataretention:200years-ESDprotection:4000V8-pinPDIP,SOICandTSSOPpackages14-leadTSSOPpackageTemperaturerangessupported:Description:TheMicrochipTechnologyInc.25AA320/25LC320/25C320(25XX320*)are32KbitserialElectricallyErasablePROMs.ThememoryisaccessedviaasimpleSerialPeripheralInterface(SPI™)compatibleserialbus.Thebussignalsrequiredareaclockinput(SCK)plusseparatedatain(SI)anddataout(SO)lines.AccesstothedeviceiscontrolledthroughaChipSelect(CS)input.Communicationtothedevicecanbepausedviatheholdpin(HOLD).Whilethedeviceispaused,transitionsonitsinputswillbeignored,withtheexceptionofChipSelect,allowingthehosttoservicehigherpriorityinterrupts.BlockDiagramPackageTypesPartNumberVCCRangeMax.ClockFrequencyTemp.Ranges25AA3201.8-5.5V1MHzI25LC3202.5-5.5V2MHzI,E25C3204.5-5.5V3MHzI,E-Industrial(I):-40°Cto+85°C-Automotive(E):-40°Cto+125°CSISOSCKCSHOLDWPStatusRegisterI/OControlMemoryControlLogicHVGeneratorEEPROMArrayPageYDecoderSenseAmp.R/WControlLogicVCCVSSLatchesXDECTSSOPPDIP,SOICTSSOPCSSOWPVSSVCCHOLDSCKSI1234876525XX320HOLDVCCCSSO12348765SCKSIVSSWP25XX320NCCSSONCWPVSSNCNCVCCHOLDNCSCKSINC25XX320123414131211510978632KSPI™BusSerialEEPROM*25XX320isusedinthisdocumentasagenericpartnumberforthe25AA320/25LC320/25C320devices.25AA320/25LC320/25C320DS21227E-page22004MicrochipTechnologyInc.1.0ELECTRICALCHARACTERISTICSAbsoluteMaximumRatings(†)VCC.............................................................................................................................................................................7.0VAllinputsandoutputsw.r.t.VSS........................................................................................................-0.6VtoVCC+1.0VStoragetemperature.................................................................................................................................-65°Cto150°CAmbienttemperatureunderbias...............................................................................................................-40°Cto125°CESDprotectiononallpins..........................................................................................................................................4kVTABLE1-1:DCCHARACTERISTICS†NOTICE:Stressesabovethoselistedunder“AbsoluteMaximumRatings”maycausepermanentdamagetothedevice.Thisisastressratingonlyandfunctionaloperationofthedeviceatthoseoranyotherconditionsabovethoseindicatedintheoperationallistingsofthisspecificationisnotimplied.Exposuretomaximumratingconditionsforanextendedperiodoftimemayaffectdevicereliability.DCCHARACTERISTICSIndustrial(I):TA=-40°Cto+85°CVCC=1.8Vto5.5VAutomotive(E):TA=-40°Cto+125°CVCC=2.5Vto5.5VParam.No.Sym.CharacteristicsMin.Max.UnitsConditionsD1VIH1High-levelinputvoltage2.0VCC+1VVCC≥2.7V(Note)D2VIH20.7VCCVCC+1VVCC2.7V(Note)D3VIL1Low-levelinputvoltage-0.30.8VVCC≥2.7V(Note)D4VIL2-0.30.3VCCVVCC2.7V(Note)D5VOLLow-leveloutputvoltage—0.2VIOL=1.0mA,VCC2.5VD6VOHHigh-leveloutputvoltageVCC-0.5—VIOH=-400µAD7ILIInputleakagecurrent—±1µACS=VCC,VIN=VSSTOVCCD8ILOOutputleakagecurrent—±1µACS=VCC,VOUT=VSSTOVCCD9CINTInternalCapacitance(allinputsandoutputs)—7pFTA=25°C,CLK=1.0MHz,VCC=5.0V(Note)D10ICCReadOperatingCurrent——1500mAµAVCC=5.5V;FCLK=3.0MHz;SO=OpenVCC=2.5V;FCLK=2.0MHz;SO=OpenD11ICCWrite——53mAmAVCC=5.5VVCC=2.5VD12ICCSStandbyCurrent——51µAµACS=VCC=5.5V,InputstiedtoVCCorVSSCS=VCC=2.5V,InputstiedtoVCCorVSSNote:Thisparameterisperiodicallysampledandnot100%tested.2004MicrochipTechnologyInc.DS21227E-page325AA320/25LC320/25C320TABLE1-2:ACCHARACTERISTICSACCHARACTERISTICSIndustrial(I):TA=-40°Cto+85°CVCC=1.8Vto5.5VAutomotive(E):TA=-40°Cto+125°CVCC=2.5Vto5.5VParam.No.Sym.CharacteristicMin.Max.UnitsConditions1FCLKClockFrequency———321MHzMHzMHzVCC=4.5Vto5.5VVCC=2.5Vto5.5VVCC=1.8Vto5.5V2TCSSCSSetupTime100250500———nsnsnsVCC=4.5Vto5.5VVCC=2.5Vto5.5VVCC=1.8Vto5.5V3TCSHCSHoldTime150250475———nsnsnsVCC=4.5Vto5.5VVCC=2.5Vto5.5VVCC=1.8Vto5.5V4TCSDCSDisableTime500—ns—5TSUDataSetupTime305050———nsnsnsVCC=4.5Vto5.5VVCC=2.5Vto5.5VVCC=1.8Vto5.5V6THDDataHoldTime50100100———nsnsnsVCC=4.5Vto5.5VVCC=2.5Vto5.5VVCC=1.8Vto5.5V7TRCLKRiseTime—2µs(Note1)8TFCLKFallTime—2µs(Note1)9THIClockHighTime150230475———nsnsnsVCC=4.5Vto5.5VVCC=2.5Vto5.5VVCC=1.8Vto5.5V10TLOClockLowTime150230475———nsnsnsVCC=4.5Vto5.5VVCC=2.5Vto5.5VVCC=1.8Vto5.5V11TCLDClockDelayTime50—ns—12TCLEClockEnableTime50—ns—13TVOutputValidfromClockLow———150230—nsnsnsVCC=4.5Vto5.5VVCC=2.5Vto5.5VVCC=1.8Vto5.5V14THOOutputHoldTime0—ns(Note1)15TDISOutputDisableTime———200250—nsnsnsVCC=4.5Vto5.5V(Note1)VCC=2.5Vto5.5V(Note1)VCC=1.8Vto5.5V16THSHOLDSetupTime10010020