数字逻辑设计及应用教学英文课件：Solution6-1.ppt

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1、Chapter6solution6.9Fromtable6-2(P366):Thetotaldelayis＝3×15＋3×15＝90ns6.13minimunequalsone-fourthtoone-thirdoftypicalLow-to-High：thetypicaldelaysis13,10,10,20ns,theminimumisestimatedat(13+10+10+20)/4=13.25ns.High-to-Low：thetypicaldelaysis20,12,12,13ns,theminimumisestimatedat(20+12+12+13

2、)/4=14.25ns.1INOUT0INOUT3-levels2-levels12343-levels3-levels2-levels2-levelstable6-2(P366)6.20ZYX（a）6.21Bothhalvesofthe‘139areenablewhenEN_Lisasserted.Putanextrainverteronthesignalgoingto1Gor2G.EnsurethatexactlyonesourcedrivesSDATAatalltimes.6.29C3=X2Y2+(X2+Y2)C2=X2Y2+X2X1Y1+X2X

3、1X0Y0+X2Y1X0Y0+Y2X1Y1+Y2X1X0Y0+Y2Y1X0Y0S3=X2Y2C36.38Y0=A’B’C’D’Y1=A’B’C’DY2=A’B’CD’Y3=A’B’CDY4=A’BC’D’Y5=A’BC’DY6=A’BCD’Y7=A’BCDY8=AB’C’D’Y9=AB’C’Ddd10dd11d01d0010110100ABCDY0=A’B’C’D’Y1=A’B’C’DY2=B’CD’Y3=B’CDY4=BC’D’Y5=BC’DY6=BCD’Y7=BCDY8=AD’Y9=ADY8,Y9需要两个输入，Y2—Y7需要三个输

4、入，Y0和Y1需要四个输入。11111111116.43采用一片SSI器件（4xNand2）和一片74x138，实现下列4个逻辑函数。