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1、SupportedCWLSettingsSupportedCLSettingsCL=6CL=5CWL=5periodCWL=5ACTtoPREcommandcommandperiodACTtoACTorREFPREcommandperiodwritedelaytimeACTtointernalreadorfirstdataInternalreadcommandtoForspecificNotesSee12.3.1“SpeedBinTableNotebin.DDR3SDRAMStandardSpeedBinsincludetCK,tRCD,t12.3StandardSpeedBi
2、ns12ElectricalCharacteristics&ACTimingforDDR3-8Page144JEDECStandardNo.79-3AParameterCL-nRCD-nRPSpeedBinCK(AVG)tCK(AVG)tSymbolRAStRCtRPtRCDtAAtTable63—DDR3-800SpeedBins2.52.537.53.33.39*502.512.5Reserved—3.312.5—52.512.5ns—min15—2015—ns15—ns20nsnsDDR3-800D5,665-5-555s”onpage148.maxtREFI00toDD
3、R3-1600(Cont’d)RP,tRASandtRCforeachcorresponding37.59*minDDR3-800E6-6-6maxtREFInnnsUnitCKCK1,2,3,1,2,3,4,NotesCL=8CL=7CL=6CL=5ACTtoPREcommandPREcommandperiodACTtointernalreadorInternalreadcommandForspecificNotesSee12.3.1“SpeedBinTableNoteACTtoACTorREFSupportedCWLSettings5,65,6commandperiod5,
4、6writedelaytime12.3StandardSpeedBins(Cont’d)12ElectricalCharacteristics&ACTimingforDDR3-8SupportedCLSettings5,6,7,86,7,86,8tofirstdataParameterCL-nRCD-nRPperiodSpeedBinCWL=6CWL=5CWL=6CWL=5CWL=6CWL=5CWL=6CWL=5CK(AVG)tCK(AVG)tCK(AVG)tCK(AVG)tCK(AVG)tCK(AVG)tCK(AVG)tCK(AVG)tSymbolRAStRCtRPtRCDt
5、AAtTable64—DDR3-1066SpeedBins1.875<2.51.8751.875<2.5<2.51.8751.8751.8752.5<2.5<2.53.32.5Reservedns37.52.53.31,2,3,ns48.753.3Reserved1,2,3,4,—11.252.550.625Reserved—11.253.3—13.125—11.25nsns52.5—13.125min201,2,3,4,6,1,2,3,6,——1513.125DDR3-1066E20ns15—15—ns20nsnsReservedReservedReservedReserve
6、dReservedReservedReservednsReservedns4,Reserved4,ns4,6-6-6<2.5tREFImax9*37.5minDDR3-1066Fs”onpage148.ReservedReservedns1,2,3,4,7-7-700toDDR3-1600(Cont’d)tREFImax9*37.5minDDR3-1066G8-8-8JEDECStandardNo.79-3AtREFImax9*nnnsUnitCKCKPage145NoteCL=CL=9CL=8CL=7CL=6CL=5ACTtoACTorREFACTtointernalread
7、ForspecificNotesSee12.3.1“SpeedBinTableNote10commandperiodcommandperiodorwritedelaytimecommandtofirstSupportedCWLSettings5,6,75,6,75,6,75,6,7PREcommandSupportedCLSettings5,6,7,8,95,6,7,8,96,8ACTtoPREInternalreadParameter12.3StandardSpeedBins(Cont’d
