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74LS169.pdf

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时间: 2020-1-6 11:28

大小: 165.98KB

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74LS169.pdfSynchronous4-BitUpDownBinaryCounter54LS169DM54LS169ADM74LS169AJune198954LS169DM54LS169ADM74LS169ASynchronous4-BitUpDownBinaryCounterGeneralDescriptionThissynchronouspresettablecounterfeaturesaninternalcountingupandapproximatelyequaltothelowportionofcarrylook-aheadforcascadinginhigh-speedcountingap-……

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