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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
4.4 KARNAUGH MAP FUNCTION MINIMIZATION 149
with these problems, it will be helpful to identify the following three subsets of PIs:
r
Essential Prime Implicants (EPIs): Single-way PIs that must be used to achieve
minimum cover
r
Optional Prime Implicants (OPIs): Optional-way PIs that are used for alterna-
tive minimum cover
r
Redundant Prime Implicants (RPIs): Superfluous PIs that cannot be used if mi-
nimum cover is to result.
Any grouping of 2
n
adjacencies is an implicant, including a single minterm or maxterm,
but it may not be a PI. For example, a solitary quad EPI contains eight RPIs, four monads,
and four dyads, none of which are PIs.
To illustrate a simple ...
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Publisher Resources

ISBN: 9780126912951