Design of Novel Efficient Multiplexer Architecture for Quantum-dot Cellular Automata

Authors Hamid Rashidi1, Abdalhossein Rezai2,

1 ACECR institute of higher education, Isfahan branch, Isfahan 84175-443, Iran

2 Academic Center for Education, Culture and Research (ACECR), Isfahan University of Technology (IUT) Branch, Isfahan 8415681167, Iran

Issue Volume 9, Year 2017, Number 1
Dates Received 12 September 2016; published online 20 February 2017
Citation Hamid Rashidi, Abdalhossein Rezai, J. Nano- Electron. Phys. 9 No 1, 01012 (2017)
DOI 10.21272/jnep.9(1).01012
PACS Number(s) 81.07.Ta, 85.35.Be
Keywords Quantum cellular automata, Nanotechnology (6) , Multiplexer, Wire crossing, Combinational logic (2) , QCADesigner (3) .
Annotation One of the promising emerging technology at nanoscale level to replace the conventional CMOS technology is Quantum-dot Cellular Automata (QCA). It has several advantages compared to conventional CMOS technology. Whereas multiplexers play a vital role in digital circuit implementations, this paper presents and evaluates a modular design methodology to build the high-performance 2n:1 multiplexer. An efficient 2:1 QCA multiplexer architecture is proposed as the basic logic unit, which is utilized to present new and efficient 4:1, and 8:1 QCA multiplexer architectures. The proposed architectures have been implemented on the QCADesigner version 2.0.1. Our implementation results show that the proposed QCA multiplexer architectures have the best performance compared to other multiplexer architectures and outperform most of them in terms of area and clock zones.

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