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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
340 CHAPTER 8 / ARITHMETIC DEVICES AND ARITHMETIC LOGIC UNITS (ALUs)
FIGURE 8.6
A 16-bit ripple-carry adder implemented with four 4-bit ripple-carry (R-C) adders.
An n-bit ripple-carry adder is more likely to be designed by using nm-bit adder modules
rather than individual FAs. One example, represented in Fig. 8.6, features four 4-bit ripple-
carry (R-C) adders in ripple-carry fashion to produce a 16-bit adder. Other examples include
a 16-bit R-C adder composed of two 8-bit R-C adders, or a 32-bit implemented with four
8-bit R-C adders.
There are practical limitations associated with the operation of an R-C adder of the type
presented in Figs. 8.5 and ...
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Publisher Resources

ISBN: 9780126912951