LC资料下载.pdf
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LC资料下载.pdf
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-40Cto+85C-Automotive(E):
-40Cto+125CA0A1A2VssVccWPSCLSDA1234876524xx256PDIPA0A1A2VSSVCCWPSCLSDA24xx25612348765SOICHVGENERATOREEPROMARRAYPAGELATCHESYDECXDECSENSEAMPR/WCONTROLMEMORYCONTROLLOGICI/OCONTROLLOGICA0A2SDASCLVCCVSSWPI/O256KI2CCMOSSerialEEPROMI2CisatrademarkofPhilipsCorporation.*24xx256isusedinthisdocumentasagenericpartnumberforthe24AA256/24LC256devices.24AA256/24LC256DS21203C-page21998MicrochipTechnologyInc.1.0ELECTRICALCHARACTERISTICS1.1MaximumRatings*VCC.7.0VAllinputsandoutputsw.r.t.VSS.-0.6VtoVCC+1.0VStoragetemperature.-65Cto+150CAmbienttemp.withpowerapplied.-65Cto+125CSolderingtemperatureofleads(10seconds).+300CESDprotectiononallpins.4kV*Notice:
Stressesabovethoselistedunder“MaximumRatings”maycausepermanentdamagetothedevice.Thisisastressratingonlyandfunctionaloperationofthedeviceatthoseoranyotherconditionsabovethoseindicatedintheoperationallistingsofthisspecificationisnotimplied.Exposuretomaximumratingconditionsforextendedperi-odsmayaffectdevicereliability.TABLE1-1PINFUNCTIONTABLEFIGURE1-1:
BUSTIMINGDATANameFunctionA0,A1,A2UserConfigurableChipSelectsVSSGroundSDASerialDataSCLSerialClockWPWriteProtectInputVCC+1.8to5.5V(24AA256)+2.5to5.5V(24LC256)TABLE1-2DCCHARACTERISTICSAllparametersapplyacrossthespecifiedoperatingrangesunlessotherwisenoted.Industrial(I):
VCC=+1.8Vto5.5VTamb=-40Cto+85CAutomotive(E):
VCC=+4.5Vto5.5VTamb=-40Cto125CParameterSymbolMinMaxUnitsConditionsA0,A1,A2,SCL,SDA,andWPpins:
HighlevelinputvoltageVIH0.7VCCVLowlevelinputvoltageVIL0.3VCC0.2VCCVVVcc2.5VVcc2.5VHysteresisofSchmittTriggerinputs(SDA,SCLpins)VHYS0.05VCCVVCC2.5V(Note)LowleveloutputvoltageVOL0.40VIOL=3.0mAVCC=4.5VIOL=2.1mAVCC=2.5VInputleakagecurrentILI-1010AVIN=VSSorVCC,WP=VSSVIN=VSSorVCC,WP=VCCOutputleakagecurrentILO-1010AVOUT=VSSorVCCPincapacitance(allinputs/outputs)CIN,COUT10pFVCC=5.0V(Note)Tamb=25C,fc=1MHzOperatingcurrentICCWrite3mAVCC=5.5VICCRead400AVCC=5.5V,SCL=400kHzStandbycurrentICCS1ASCL=SDA=VCC=5.5VA0,A1,A2,WP=VSSNote:
Thisparameterisperiodicallysampledandnot100%tested.WP(unprotected)(protected)TSU:
WPTHD:
WPSCLSDAINTSU:
STASDAOUTTHD:
STATLOWTHIGHTRTBUFTAATHD:
DATTSU:
STOTSPTFVHYS1998MicrochipTechnologyInc.DS21203C-page324AA256/24LC256TABLE1-3ACCHARACTERISTICSAllparametersapplyacrossthespec-ifiedoperatingrangesunlessother-wisenoted.Industrial(I):
VCC=+4.5Vto5.5VTamb=-40Cto125CParameterSymbolMinMaxUnitsConditionsClockfrequencyFCLK100100400kHz4.5VVCC5.5V(ETemprange)1.8VVCC2.5V2.5VVCC5.5VClockhightimeTHIGH40004000600ns4.5VVCC5.5V(ETemprange)1.8VVCC2.5V2.5VVCC5.5VClocklowtimeTLOW470047001300ns4.5VVCC5.5V(ETemprange)1.8VVCC2.5V2.5VVCC5.5VSDAandSCLrisetime(Note1)TR10001000300ns4.5VVCC5.5V(ETemprange)1.8VVCC2.5V2.5VVCC5.5VSDAandSCLfalltimeTF300ns(Note1)STARTconditionholdtimeTHD:
STA40004000600ns4.5VVCC5.5V(ETemprange)1.8VVCC2.5V2.5VVCC5.5VSTARTconditionsetuptimeTSU:
STA47004700600ns4.5VVCC5.5V(ETemprange)1.8VVCC2.5V2.5VVCC5.5VDatainputholdtimeTHD:
DAT0ns(Note2)DatainputsetuptimeTSU:
DAT250250100ns4.5VVCC5.5V(ETemprange)1.8VVCC2.5V2.5VVCC5.5VSTOPconditionsetuptimeTSU:
STO40004000600ns4.5VVCC5.5V(ETemprange)1.8VVCC2.5V2.5VV
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