Title
A design methodology for hybrid carry-lookahead/carry-select adders with reconfigurability
Abstract
This paper presents a design methodology of reconfigurable hybrid carry lookahead/carry select adders (CLSA). A novel partition scheme is used to divide a large hybrid CLSA into multiple small ones with blocking specific inputs of the carry lookahead unit in the hybrid CLSA. The partition scheme incurs no delay penalty regardless of the size of adders. Moreover, the additional area cost is very small. For example, a reconfigurable 16-bit hybrid CLSA with four different partition configurations needs additional 6 two-input AND gates and three two-input multiplexers. Simulation results show that the delay of a 64-bit reconfigurable CLSA is only about 1.38 ns in 0.18 μm technology.
Year
DOI
Venue
2005
10.1109/ISCAS.2005.1464528
ISCAS (1)
Keywords
Field
DocType
adders,partition scheme,logic circuits,delay,and gates,two-input multiplexers,carry logic,clsa,cmos logic,64 bit,16 bit,cmos logic circuits,hybrid carry-lookahead/carry-select adders,logic gates,reconfigurability,0.18 micron,design methodology,chromium,computer architecture,multiplexing
Logic gate,Reconfigurability,Adder,Computer science,16-bit,Parallel computing,CMOS,Multiplexer,Electronic engineering,Multiplexing,AND gate
Conference
ISSN
ISBN
Citations 
0271-4302
0-7803-8834-8
5
PageRank 
References 
Authors
0.85
3
3
Name
Order
Citations
PageRank
Jin-Fu Li166259.17
Jiunn-der Yu250.85
Yu-Jen Huang315414.91