12位AD转换器TLC2543与51系列单片机接口技术

195Vol.19No.5199910JOURNALOFSUZHOUINSTITUTEOFSILKTEXTILETECHNOLOGYOct.1999:1000-1999(1999)05-0045-0612A/DTLC254351X(,215006):1112A/DTLC2543,TLC254351,SPI,A/D,:A/D;TLC2543;51;:TP33417:B1112TLC254312A/D,,,12A/D,TCL2543,51,(AT89C51GMS97C51),51,515151,51,51,,,TLC254351,TLC2543(SPI,SerialPeripheralInterface),51SPI,SPITLC2543,,TLC2543,TLC254351A/D,TLC25431TLC2543X:1999-06-30:(1962-),,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.TLC254312,,DBDWN1TLC254320,:(1)Vcc,20:,+5VGND,10:REF+,14:,+5VREF-,13:,(2)CS,15:,,EOC,19:,I/OCLOCK,18:,1TLC2543(3)AIN0AIN10,191112:11,:0.3VVcc+0.3V(4)DATATNPUT,17:,(5)DATAOUT,16:A/D32TLC2543211DATAINPUTTLC25438,TLC25434(D7D4),010,4000000011010,4,,4,D3D2,TLC254381216,TLC254312A/D,,816TLC2543,12,D3D200D1,,,0,1D0()(2),,0,1:612,:01100000,60H,212TLC2543645©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,TLC2543DATAINPUT,DATAOUT213,CS,,EOC,0,,CS,I/OCLOCKDATAINPUT,DATAOUT,EOCCS,I/OCLOCKDATAINPUT,DATAOUT12I/OCLOCK,,DATAINPUTTLC2543(),A/D,DATAOUTTLC25434,,,TLC2543,1212,EOC,A/D,10s,EOC,,,3TLC25435151SPI,TLC2543,,SPI,A/D2TLC254351TLC25434,EOF,10s,,EOF,,A/D,2,,2TLC2543514TLC25432,A/DTLC254312,4,40TLC2543A/D,7419:12A/DTLC254351©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.021H22H,123H24H,845©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.5TLC2543TLC2543,:511,EOCEOC12,TLC2543A/D,EOC,,EOC,TLC2543A/D,,,TLC2543A/D10s,,,10s,,,EOC51212,12,TLC2543DATAOUT12,A/D,,DATAINPUTTLC2543,DATAOUT5134,,,,A,TLC2543,,,514CSTLC2543CS,CS,12CS0,CS,CS,CS,TLC2543,,,,,,CS9419:12A/DTLC254351©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.515,VREF+,121,(111111111111),VREF-,120,(000000000000),(VREF++VREF-)/2,(100000000000),12,8,,,,,,[1]TexasInstrumentsIncorporated.TLC2543ApplicationReport.[2]1(6)[M]1:,1998:283286THEINTERFACETECHNOLOGYABOUT12-BITA/DCONVERTERSTLC2543AND51-SINGLECHIPWANGYihuai(CollegeofTechnologyofSuzhouUniversity,Suzhou,215006)Abstract:TheTLC2543are12-bitanalog-to-digitalconvertersandhave11analoginputchan2nels.Inthispaperitsstructureandprogammingoutlinisdescribed.TheinterfacemethodabouttheTLC2543and51-singlechipisdiscussed.TheSerialPeripheralInterface(SPI)isperformedbysoft2ware.AinterfacecircuitryaboutTLC2543with51-singlechipandA/Dprogramispresented.SomevaluablesuggestionsandreferencesforuseofTLC2543areputforward.Keywords:A/Dconverter;TLC2543chip;51-Singlechip;Interfacetechnology055©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.