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DM54LS169A Dataheets PDF



Part Number DM54LS169A
Manufacturers National Semiconductor
Logo National Semiconductor
Description Synchronous 4-Bit Up/Down Binary Counter
Datasheet DM54LS169A DatasheetDM54LS169A Datasheet (PDF)

54LS169 DM54LS169A DM74LS169A Synchronous 4-Bit Up Down Binary Counter June 1989 54LS169 DM54LS169A DM74LS169A Synchronous 4-Bit Up Down Binary Counter General Description This synchronous presettable counter features an internal carry look-ahead for cascading in high-speed counting applications Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs all change at the same time when so instructed by the countenable inputs and internal gating This .

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54LS169 DM54LS169A DM74LS169A Synchronous 4-Bit Up Down Binary Counter June 1989 54LS169 DM54LS169A DM74LS169A Synchronous 4-Bit Up Down Binary Counter General Description This synchronous presettable counter features an internal carry look-ahead for cascading in high-speed counting applications Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs all change at the same time when so instructed by the countenable inputs and internal gating This mode of operation helps eliminate the output counting spikes that are normally associated with asynchronous (ripple clock) counters A buffered clock input triggers the four master-slave flip-flops on the rising edge of the clock waveform This counter is fully programmable that is the outputs may each be preset either high or low The load input circuitry allows loading with the carry-enable output of cascaded counters As loading is synchronous setting up a low level at the load input disables the.


54LS169 DM54LS169A DM54LS461


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