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74LS191.pdf

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时间: 2020-1-6 11:28

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74LS191.pdfSynchronous4-BitUpDownCounterswithModeControlDM54LS190DM74LS190DM54LS191DM74LS191May1989DM54LS190DM74LS190DM54LS191DM74LS191Synchronous4-BitUpDownCounterswithModeControlGeneralDescriptionThesecircuitsaresynchronousreversibleupdowncoun-Twooutputshavebeenmadeavailabletoperformthecas-tersTheLS191isa4-bitbinarycount……

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