Title: Simple design of QCA-based T-flipflop with energy dissipation analysis for nanocomputing

Authors: Angshuman Khan; Sikta Mandal; Rajeev Arya

Addresses: Department of Electronics and Communication Engineering, University of Engineering and Management, Jaipur, Rajasthan – 303807, India ' School of Electronics Engineering, KIIT (Deemed to be University), Bhubaneswar, Odisha – 751024, India ' Department of Electronics and Communication Engineering, National Institute Technology Patna, Patna, Bihar – 800005, India

Abstract: One of the emerging nanotechnologies that might one day replace traditional transistor-based technologies is quantum-dot cellular automata (QCA). An effective elementary T-flipflop based on the QCA is proposed here. There is no need to cross wires across layers, so the suggested gates may be realised with single-layer majority gates. QCADesigner 2.0.3 is used to create and test circuit layouts. The simulation outcome discredits the superiority of the existing designs. When the suggested design is compared to the best T-flipflop currently available, cell complexity and cell area needed are decreased by ~9:3% and ~7:7%, respectively. The energy loss of the proposed block has also been estimated using the QCAPro and QCADesigner-E (QDE) tools. According to QCAPro, there is a ~12% improvement in energy dissipation at γ = 1:5E_K over the best available design.

Keywords: flipflop; nanocomputing; T-flipflop; quantum dot cellular automata; QCA.

DOI: 10.1504/IJAHUC.2023.135108

International Journal of Ad Hoc and Ubiquitous Computing, 2023 Vol.44 No.4, pp.233 - 239

Received: 17 Nov 2022
Accepted: 03 Jul 2023
Published online: 30 Nov 2023 *

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