Consider the system of Figure 9-31. Assume that the clock frequency is 10 pps. Describe what the
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Consider the system of Figure 9-31. Assume that the clock frequency is 10 pps. Describe what the monitoring panel indications will be for each of the following cases.
(a) All doors closed
(b) All doors open
(c) Doors 2 and 6 open
Figure 9-31
Transcribed Image Text:
Door 0 Door 6 +5 V +5 V From doors 1-5 Door 7 1 I I L ||| 4₂ 13 h 7AHC151 MUX Q₂ Q₁ Qo MOD-8 CTR JUL> CLOCK +5 V +5 V 74HC138 DEMUX A₂ A₁ A₂ Monitoring panel 330 0 0 0₂ Ös 06 4H
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Case a All doors closed The 74HC151 multiplexer is a 1of8 multiplexer It selects one of eight inputs ...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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