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74191

Part Number	74191
Manufacturer	Fairchild Semiconductor
Description	Synchronous 4-Bit Up/Down Counter
Detailed Description	DM74LS191 Synchronous 4-Bit Up/Down Counter with Mode Control August 1986 Revised February 1999 DM74LS191 Synchronous ...
Published	Apr 3, 2005
Datasheet	74191 PDF File

Overview

DM74LS191 Synchronous 4-Bit Up/Down Counter with Mode Control August 1986 Revised February 1999 DM74LS191 Synchronous 4-Bit Up/Down Counter with Mode Control General Description 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 normally associated wi...

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