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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
248 CHAPTER 6 / NONARITHMETIC COMBINATIONAL LOGIC DEVICES
FIGURE 6.8
Implementation of the function in Eq. (6.7) with mixed-logic inputs by using a 4-to-1 MUX. (a)
Second-order K-map compressions for the function Y showing the renumbered cells due to B(L). (b)
Logic circuit.
6.3 DECODERS/DEMULTIPLEXERS
A decoder is an n-input/2
n
-output combinational logic device that has the function of
activating one of the 2
n
outputs for every unique binary input pattern of n bits. The circuit
symbol for an n-to-2
n
decoder is shown in Fig. 6.9a, where I
n1
I
0
are the data inputs,
Y
2
n
1
Y
0
are the outputs, and G is the enable. Each output is identified by the minterm
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Publisher Resources

ISBN: 9780126912951