| Title |
Design and Analysis of Cell Interaction-Based QCA Multiplexer Considering Scalability and Connectivity |
| Authors |
서덕규(Duck-Kyu Seo) ; 전준철(Jun-Cheol Jeon) |
| DOI |
https://doi.org/10.5573/ieie.2020.57.9.50 |
| Keywords |
nanotechnology; quantum-dot cellular automata; multiplexer; cell interaction; D-latch |
| Abstract |
Quantum-dot cellular automata(QCA) is a next-generation digital circuit design technology that has many benefits over conventional CMOS-based circuits because of less power consumption and smaller device size. Due to the fact that existing circuits can be designed as they are, various digital logic circuits are designed based on QCA. Most of The previously proposed multiplexer based on QCA are majority gate-based which used lots of gates, and has poor scalability because I/O cells are spread outside the circuit. So, in this paper, we propose a QCA multiplexer that is based on cell interaction considering better scalability and connectivity than existing circuits. Also, we analyze and compare with proposed multiplexer and previously proposed multiplexer. The proposed multiplexer has better performance than majority gate-based circuit because of less gate number, and scalability and connectivity are excellent because I/O cells are arranged side by side. Finally, we compare and organize with the energy loss of the previously proposed circuits and proposed multiplexer. Since the proposed circuit can be transformed into a D-latch, it can be used to develop various circuits such as RAM and registers. |