54191 Datasheet - National Semiconductor

Synchronous Up/Down 4-Bit Binary Counter

54191 Features

* Y Y Y Y Y Y Y Single down up count control line Count enable control input Ripple clock output for cascading Asynchronously presettable with load control Parallel outputs Cascadable for n-bit applications Alternate Military Aerospace device (54191) is available Contact a National Semiconductor Sale

54191 General Description

This circuit is a synchronous reversible up down counter The 191 is a 4-bit binary counter Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change simultaneously when so instructed by the steering logic This mode of operation eliminates the output.

54191 Datasheet (129.85 KB)

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54191

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National Semiconductor

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129.85 KB

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Synchronous up/down 4-bit binary counter.
54191 DM54191 DM74191 Synchronous Up Down 4-Bit Binary Counter with Mode Control June 1989 54191 DM54191 DM74191 Synchronous Up Down 4-Bit Binary Co.

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54191 Synchronous Down 4-Bit Binary Counter National Semiconductor

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54191 Features

54191 General Description

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