Design of a High Performance Reversible Combinational Digital circuit based on a new Reversible Gate in QCA Technology

Quantum-dot Cellular Automata (QCA) technology and Reversible logic are presented to overcome the various problems such as the chip size reduction and power consumption in the traditional CMOS designs. In this paper, QCA is considered as a professional method for implementation of the reversible logic. Firstly, a new block of two-input XOR gate is provided, and then the novel universal reversible gate is designed based on this block. Using this reversible structure, we can design useful QCA combinational digital circuits. Hence, we design a one-bit full adder using new reversible gate, this structure has single layer and coplanar (clock based) cross-wiring. The proposed reversible full adder achieves ۶۳.۸۳% and ۵۵.۳۸% in the number of cells and occupied area, respectively with Compared to previous best designs. The latency in our proposed structure is ۱ clock cycle, the operation of the proposed structures has been tested with QCA Designer version ۲. ۰. ۳.

کلیدواژه ها:

Reversible logic ، Quantum-dot Cellular Automata (QCA) ، XOR gate ، Full adder