Quantum-dot Cellular Automata circuits using an efficient design and performance analysis

Gade, Mary Swarna Latha; Rooban, S.

doi:10.1016/j.seta.2021.101603

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…Different types of digital circuits and QCA-based gates can be made by using these cells, including majority gates [13]. The majority gate is recognized as one of the most important and major gates in the QCA logic, which acts as a basis of design in many more complicated circuits in the QCA [14].…”

Section: Basics Of Qcamentioning

confidence: 99%

Asynchronous Counter in QCA Technology Using Novel D Flip-Flop

Amirzadeh

Gholami

2022

Preprint

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A strong need for high-speed and low-power consumption devices seems inevitable due to the high speed of technological advancement in the field of microelectronics. Designers are highly interested in designing and making nanoscale devices. The Quantum Cellular Automaton (QCA) is known as one of these technologies, which makes it feasible to implement digital circuits with a high operating speed. In this paper a 4-bits counter, a 3-bits bidirectional counter, a 4-bits counter with a reset terminal, and a 4-bit counter with both set and reset terminals are designed using the proposed D-latch to demonstrate that these circuits function accurately in more complex circuits. According to the results, the area was respectively reduced by 8.33% and 15.38% with a 4.76% reduction in the delay rate in the proposed 4-bits counter and 3-bits bidirectional counter compared to the best previous designs. All the designs and simulation results is being done in the QCAPro and QCADesigner software.

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Section: Basics Of Qcamentioning

confidence: 99%

Asynchronous Counter in QCA Technology Using Novel D Flip-Flop

Amirzadeh

Gholami

2022

Preprint

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Three different topologies for 4-bit counters in quantum-dot cellular automata technology

Kiani Vosta,

Gholami

2024

Phys. Scr.

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QCA (Quantum-dot Cellular Automata) technology is an innovative technology based on quantum principles and uses quantum dots as the basic units for information transfer. This technology enables the fabrication of electronic circuits at high speed, lower power consumption and smaller size. For this reason, in this article, for the first time, three types of counters are designed in QCA technology with the least cell and the smallest area. First, Johnson ring counter with 132 cells, area of 0.16 μm^2 and a delay of 2 clock cycles, then synchronous counter with 192 cells and area of 0.2 μm^2 and finally synchronous with reset capability with 267 cells and area of 0.27 μm^2 is designed. Also, the improvement percentage of the number of cells and the area of the proposed designs compared to different authorities is %25.82 and %35, respectively. As a result, the proposed designs are among the most optimal designs among different authorities. All the simulations were done in QCAPro and QCADesigner version 2.0.3 softwares.

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