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Engineering Digital Design
book

Engineering Digital Design

by Richard F. Tinder
January 2000
Intermediate to advanced content levelIntermediate to advanced
884 pages
29h 39m
English
Academic Press
Content preview from Engineering Digital Design
11.3 DETECTION AND ELIMINATION OF STATIC HAZARDS 509
in Fig. 11.18b, clearly shows that a static 0-hazard is not possible for the transition 001 101.
This is so because the b c branching condition in Fig. 11.14a requires that input T be
active, which is contrary to the requirements indicated by the coupled terms, (S
¯
T ). Thus,
independent of whether or not there is a match between the logic character of the flip-flops
and that of the output logic, no s-hazard is possible in Y
POS
. Therefore, the addition of
hazard cover is not applicable (NA) as indicated in Fig. 11.15b. Notice that the gate/input
tallies for Y
POS
and Y
SOP
are 3/8 and 4/10, respectively, exclusive of inverters and hazard
cover. If hardware cost is the only consideration, the best choice ...
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Publisher Resources

ISBN: 9780126912951