Synchronous 4-Bit Up/Down Binary Counter

This synchronous presettable Counter features an internal carry look-ahead for cascading in high-speed counting ap- plications. 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 count- enable 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. By National Semiconductor Corporation
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DM54LS169A Pinout, Pinouts
DM54LS169A pinout,Pin out
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