A review paper on design of an asynchronous counter using novel reversible SG gate

In today's world power dissipation is one of the major concern as the complexity of the chip is increasing and more devices are being integrated on a single chip. Thus this high density of chip and increased power dissipation demands for better power optimization methods. Reversible logic is one of the method to reduce power dissipation. Reversible computing has a wide number of applications in areas of advance computing such as low power CMOS VLSI design, nanotechnology, cryptography, optical computing, DNA computing and quantum computing. This paper presents reversible T-flip flop using "SGG" gate and Feynman gate and then a novel design of asynchronous reversible counter is also proposed.