All two-input logic gates by a single-stage single electron box

Sharifi, Mohammad Javad; Ahmadian, Mehdi

doi:10.1080/00207217.2018.1477193

Cited by 4 publications

(1 citation statement)

References 26 publications

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“…As manufactures approach the limits of complementary metal oxide semiconductor (CMOS) technology, such as size limitation, high-power consumption, short-circuit effects, and high-noise absorption, new alternative technologies are being widely researched, such as single electron transistors, spintronics, and carbon-based transistors, among others [1][2][3][4][5][6]. The quantum-dot cellular automata (QCA) is a promising new paradigm.…”

Section: Introductionmentioning

confidence: 99%

Gray‐code adder with parity generator – a novel quantum‐dot cellular automata implementation

Vieira

Neto

2020

IET Circuits, Devices & Systems

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This study describes the first Gray-code adder architecture, without the need to transform the Gray code into binary code, using the quantum-dot cellular automata (QCA). This device is a widely used resource for machine communications, counters, and encoders. QCA is a possible alternative to the current integrated circuit [complementary metal oxide semiconductor (CMOS)] due to its nanometric scale and very low-power consumption. In a bottom-up approach, the authors first describe and present the architecture of an important building block that composes the Gray-code adder, the parity generator, and then describe the full architecture. Besides being essential in the proposed adder, the parity generator is also important for error-checking and construction of other devices and widely used in communications. They demonstrate the functionality, test, and validate the proposed architectures using the QCADesigner simulator. If QCA consolidates as a possible CMOS substitute, this study can impact the design of future components that uses Gray-code and parity generator, such as embedded digital communications systems that will benefit from the low-power consumption of the QCA technology.

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