A novel design of 3 input 8 output decoder using Quantum dot Cellular Automata

Abstract

The presented paper is based on a new technology, QCA (Quantum-dot Cellular Automata), a promising successor for CMOS transistor technology. The implementation of logic circuits by the traditional devices (eg. transistors, diodes and resistors are replaced by quantum devices (quantum dots or single domain nano magnets). The use of quantum-dots is a promising emerging technology for implementing digital systems at the nano-scale level. This technique is depending on the interaction of electrons within quantum dots. This project proposes layouts for a decoder based on QCA. The proposed 3 to 8 decoder design can be used to implement n to 2n decoder. For detailed layout QCA Designer software is used, we may able to design complete circuits on a single layer of QCA by taking full advantage of the unique features of this technology. Such devices are function with very high operating speeds and ultra low power consumption.