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Design of Low Power Asynchronous Parallel Adder


Benedicta Roseline. R , Akshaya College of Engineering and Technology; Kamatchi. S, Akshaya College of Engineering and Technology


Asynchronous Circuits, Radix Based Full Adder, Carry Look-Ahead Technique


This paper describes an asynchronous parallel adder. It is based on Radix method for faster computation of sum and to reduce delay caused by carry chain. The computation has been carried out using parallel process. The aim of this work is to reduce the Power Delay Product (PDP) and Energy Delay Product (EDP) of an adder. We use two Full Adders (FA) in a single block and use a carry look-ahead technique to shorten the carry path within the radix-4 FA block. To obtain low area, the carry is generated first and then it is reused in sum generation. The adder is implemented using Tanner EDA v13 tool. The practicality and superiority of the proposed technique have been verified by simulations over other asynchronous adders.

Other Details

Paper ID: IJSRDV3I40588
Published in: Volume : 3, Issue : 4
Publication Date: 01/07/2015
Page(s): 904-908

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