Design of Special Circuits Using State-of-the-Art Reversible Gates

The rapid advancements in VLSI industry continue to establish a smaller feature size, causing the integration of more millions of transistors on a single piece of silicon according to Moore’s law. Hence, an increase in the number of transistors induces power dissipation. Modern studies explain that power dissipation can be reduced by reversible gate technique. A central issue is the lack of use of reversible logic gates over conventional logic gates, which have enormous advantages in low-power application like portable devices, cryptography, quantum computing and nanotechnology. Different reversible gates are introduced in this research paper. Basic arithmetic and logical operations are realized from primitive level. The realized operations are used as basic blocks to design complex special adders. All introduced modules are designed using Verilog on Xilinx ISE V13.2 and ISim simulator.