Publication: Decoder/encoder design using QCA (Quantum Cellular Automata)
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Date
2020-02
Authors
Sarvinthiran a/l Raman Krishnan
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Abstract
Further downscaling of the dimensions of CMOS devices is more and more challenging, as reduction in feature size of CMOS devices has reached to its feature size limit. Quantum cellular automata (QCA) is an emerging nanotechnology and has the ability to develop digital circuits with high packaging density, smaller areas, reduced power dissipation, and incredibly fast switching speed. QCA falls under the ultra-dense, high-performance digital device as it works at a nanometre scale. In this research, QCA technology is delved into to design and implement several encoders, decoders and converter circuit. The designs proposed in this dissertation includes the 2-to-4 simple decoder, 2-to-4 with enable input decoder, 3-to-8 decoder, 4-to-2 priority encoder, 8-to-3 simple encoder and 4-bit binary to Gray code converter. The proposed designs can be further developed into various simple as well as complex circuits such as multipliers and other sequential circuits. QCA Designer is used to simulate the proposed designs and comparative analysis is done to measure its performance to current designs.
Description
FYP 2 SEM 2 2019/2020
Keywords
Quantum dot cellular , encoder , decorder , converter , qca designer