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1、Figure8–1A2-bitasynchronousbinarycounter.OpenfileF08-01toverifyoperation.ThomasL.FloydDigitalFundamentals,9eCopyright©2006byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.Figure8–2TimingdiagramforthecounterofFigure8–1.Asinpreviouschapters,outputwaveformsareshowningreen.Thom
2、asL.FloydDigitalFundamentals,9eCopyright©2006byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.Figure8–3Three-bitasynchronousbinarycounteranditstimingdiagramforonecycle.OpenfileF08-03toverifyoperation.ThomasL.FloydDigitalFundamentals,9eCopyright©2006byPearsonEducation,Inc. U
3、pperSaddleRiver,NewJersey07458 Allrightsreserved.Figure8–4Propagationdelaysina3-bitasynchronous(ripple-clocked)binarycounter.ThomasL.FloydDigitalFundamentals,9eCopyright©2006byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.Figure8–5Four-bitasynchronousbinarycounteranditstim
4、ingdiagram.OpenfileF08-05andverifytheoperation.ThomasL.FloydDigitalFundamentals,9eCopyright©2006byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.Figure8–6Anasynchronouslyclockeddecadecounterwithasynchronousrecycling.ThomasL.FloydDigitalFundamentals,9eCopyright©2006byPearson
5、Education,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.Figure8–7Asynchronouslyclockedmodulus-12counterwithasynchronousrecycling.ThomasL.FloydDigitalFundamentals,9eCopyright©2006byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.Figure8–8The74LS934-bitasynchronousbin
6、arycounterlogicdiagram.(Pinnumbersareinparentheses,andallJandKinputsareinternallyconnectedHIGH.)ThomasL.FloydDigitalFundamentals,9eCopyright©2006byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.Figure8–9Twoconfigurationsofthe74LS93asynchronouscounter.(Thequalifyinglabel,CTR
7、DIVn,indicatesacounterwithnstates.)ThomasL.FloydDigitalFundamentals,9eCopyright©2006byPearsonEducation,Inc. UpperSaddleRiver,NewJersey07458 Allrightsreserved.Figure8–1074LS93connectedasamodulus-12counter.Th
