<abstract xmlns="http://www.w3.org/1999/xhtml">
<p>This work presents a new T-flipflop design based on quantum-dot cellular automata technology, with the standard two inputs (<italic>T</italic> and clock) and two outputs (<italic>Q</italic> and <italic>Q̄</italic>). It adheres to the typical QCA layout design approach, which consists of two majority voters and one inverter (to produce the complementary output, <italic>Q̄</italic>). It is a single-layered design with no crossover. A memory loop is used to retain previous values and aid the toggling operation of the T-flipflop. This design achieves improved functionality and reduced area requirement compared to existing designs. In addition, the study investigated energy loss and cost functions. In particular, the total energy loss is reduced by 10% and 22% compared to the best design when analyzed with the QCAPro and QCADesigner-E (QDE) tools, respectively. The area-delay and energy-delay cost functions outperform the best current design by 1.3 and 1.07 times, respectively. Overall, this work advances QCA-based flipflop (QTFF) designs and emphasizes the potential of QCA technology for creating effective QCA circuits.</p>
</abstract>

This work presents a new T-flipflop design based on quantum-dot cellular automata technology, with the standard two inputs (T and clock) and two outputs (Q and Q̄). It adheres to the typical QCA layout design approach, which consists of two majority voters and one inverter (to produce the complementary output, Q̄). It is a single-layered design with no crossover. A memory loop is used to retain previous values and aid the toggling operation of the T-flipflop. This design achieves improved functionality and reduced area requirement compared to existing designs. In addition, the study investigated energy loss and cost functions. In particular, the total energy loss is reduced by 10% and 22% compared to the best design when analyzed with the QCAPro and QCADesigner-E (QDE) tools, respectively. The area-delay and energy-delay cost functions outperform the best current design by 1.3 and 1.07 times, respectively. Overall, this work advances QCA-based flipflop (QTFF) designs and emphasizes the potential of QCA technology for creating effective QCA circuits.

Elementary design and analysis of QCA-based T-flipflop for nanocomputing

Department of Electronics and Communication Engineering

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Elementary design and analysis of QCA-based T-flipflop for nanocomputing"}

This work presents a new T-flipflop design based on quantum-dot cellular automata technology, with the standard two inputs (T and clock) and two outputs (Q and...

Elementary design and analysis of QCA-based T-flipflop for nanocomputing

Published Online: Oct 21, 2023

Page range: 336 - 343

Received: Apr 07, 2023

DOI: https://doi.org/10.2478/jee-2023-0041

Keywords
flipflop, T-flipflop, QCA, quantum dot cellular automata, QTFF

© 2023 Angshuman Khan, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Elementary design and analysis of QCA-based T-flipflop for nanocomputing

Published Online: Oct 21, 2023

Page range: 336 - 343

Received: Apr 07, 2023

DOI: https://doi.org/10.2478/jee-2023-0041

Keywordsflipflop, T-flipflop, QCA, quantum dot cellular automata, QTFF

© 2023 Angshuman Khan, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
flipflop, T-flipflop, QCA, quantum dot cellular automata, QTFF