Refer to Figure 7-15, where a 74HC160 has the input signals given in the timing diagram applied.
Question:
Refer to Figure 7-15, where a 74HC160 has the input signals given in the timing diagram applied. The parallel data inputs are permanently connected as 0111. Assume the counter is initially in the 0000 state, and determine the counter output waveforms.
Figure 7-15
Transcribed Image Text:
CLK CLR LOAD ENT ENP QD 8 QC QB QA RCO t₁ 1 1 1 1 1 T T 1 1 1 1 1 T T I 1 1 1 T T T 1 I I 1 1 T T 1 I T I 1 1 T 1 III II 1 T 1 ||| I 1 T 1 T 1 T T I T 1 1 1 I T T 1 T T ENT ENP CLR LOAD T T 1 1 1 T T T I 1 T 0 1 1 1 T T T 1 T T I T T T T T I I ENT ENP CLR -LOAD T T T T T 74HC160 I CLK DUBA 8888 (a) 1 1 RCO I 1 I 1 T T T (b) T T QD QC QB QA T T 1 I T - RCO 8888 QD QB QA 1 T T 10 HLF | | | 1 T 1 I
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Initially at to the counters FFs are all LOW Since this is not the terminal state for the BCD counte...View the full answer
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Related Book For
Digital Systems Principles And Application
ISBN: 9780134220130
12th Edition
Authors: Ronald Tocci, Neal Widmer, Gregory Moss
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