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DM74LS163A

National Semiconductor
Part Number DM74LS163A
Manufacturer National Semiconductor
Description Synchronous 4-Bit Binary Counters
Published Apr 1, 2005
Detailed Description 54LS161A DM54LS161A DM74LS161A 54LS163A DM54LS163A DM74LS163A Synchronous 4-Bit Binary Counters May 1992 54LS161A DM54...
Datasheet PDF File DM74LS163A PDF File

DM74LS163A
DM74LS163A

Overview
54LS161A DM54LS161A DM74LS161A 54LS163A DM54LS163A DM74LS163A Synchronous 4-Bit Binary Counters May 1992 54LS161A DM54LS161A DM74LS161A 54LS163A DM54LS163A DM74LS163A Synchronous 4-Bit Binary Counters General Description These synchronous presettable counters feature an internal carry look-ahead for application in high-speed counting designs The LS161A and LS163A are 4-bit binary counters The carry output is decoded by means of a NOR gate thus preventing spikes during the normal counting mode of operation Synchronous operation is provided by having all flipflops clocked simultaneously so that the outputs change coincident with each other when so instructed by the countenable inputs and internal gating This mode of operation eliminates the output counting spikes which are normally associated with asynchronous (ripple clock) counters A buffered clock input triggers the four flip-flops on the rising (positive-going) edge of the clock input waveform These counters are fully programmable ...


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