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74191 Datasheet - Fairchild Semiconductor

74191 Synchronous 4-Bit Up/Down Counter

The DM74LS191 circuit is a synchronous, reversible, up/ down 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 counting spikes no.

74191 Features

* s Counts binary s Single down/up count control line s Count enable control input s Ripple clock output for cascading s Asynchronously presettable with load control s Parallel outputs s Cascadable for n-bit applications s Average propagation delay 20 ns s Typical clock frequency 25 MHz s Typical powe

74191 Datasheet (72.74 KB)

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Datasheet Details

Part number:

74191

Manufacturer:

Fairchild Semiconductor

File Size:

72.74 KB

Description:

Synchronous 4-bit up/down counter.

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74191 Synchronous 4-Bit Down Counter Fairchild Semiconductor

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