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HD74HC93 Dataheets PDF



Part Number HD74HC93
Manufacturers Renesas
Logo Renesas
Description 4-bit Binary Counter
Datasheet HD74HC93 DatasheetHD74HC93 Datasheet (PDF)

HD74HC93 4-bit Binary Counter REJ03D0557-0200 (Previous ADE-205-430) Rev.2.00 Oct 06, 2005 Description The HD74HC93 is a 4-bit ripple type counter consisting of four master/slave flip-flops that are internally connected to provide separate divide-by-two and divide-by-eight sections. Each section has a separate clock input which initiates state changes of the counter on the high-to-low clock transition. State changes of the Q outputs do not occur simultaneously because of internal ripple delays. .

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HD74HC93 4-bit Binary Counter REJ03D0557-0200 (Previous ADE-205-430) Rev.2.00 Oct 06, 2005 Description The HD74HC93 is a 4-bit ripple type counter consisting of four master/slave flip-flops that are internally connected to provide separate divide-by-two and divide-by-eight sections. Each section has a separate clock input which initiates state changes of the counter on the high-to-low clock transition. State changes of the Q outputs do not occur simultaneously because of internal ripple delays. Therefore, decoded output signals are subject to decoding spikes and should not be used as clocks or as strobes except when gated with the clock of the HD74HC93. QA is the output of the divide-by-two section; QB, QC, and QD are the binary outputs of the divide-by-eight section. A gated AND asynchronous reset is provided which resets all the flip-flops. Because the output from the divide-by-two section is not internally connected to the succeeding stages, the devices may be operated in various co.


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