DESIGNING A NEW REVERSIBLE ADDER/SUBTRACTOR CIRCUIT FOR LOW POWER ALU APPLICATION

摘要

Today, low power loss systems are among the great focus of researchers. Fast and efficient processing systems are in greater demands of this period In recent years, a huge amount of importance has been given to reversible circuits. The reversible design approach is directed towards the need for the efficient electronic system. It is one of the most important issues at the present time and has many applications such as low power CMOS, nanotechnology, quantum computing, digital signal processing etc. Arithmetic and logic circuits are considered as the important design of any digital calculating systems. In this paper, 4-bit reversible ALU using new reversible Full adder/subtractor is proposed The proposed design is compared with a existing design in terms of quantum cost, constant input, garbage output and gate count