Work place: Department of Electrical Engineering, University of South Florida, Tampa, FL, USA
E-mail: sarmadi@mail.usf.edu
Website:
Research Interests: Engineering
Biography
Soheil Sarmadi received his M.Sc. from Islamic Azad University of Arak, Arak, Iran at Computer Engineering department in 2015. He is currently working toward his Ph.D. degree in Electrical Engineering at the University of South Florida, Tampa, FL, USA. And also, he works as teaching assistant at USF. His main research interest lies in emerging Nano-scale technologies and is now more focused on Bioengineering.
Email: sarmadi@mail.usf.edu
By Soheil Sarmadi Saeid Azimi Shadi Sheikhfaal Shaahin Angizi
DOI: https://doi.org/10.5815/ijmecs.2015.09.03, Pub. Date: 8 Sep. 2015
Quantum-dot cellular automata presents a promising Nano-scale technology for replacement of conventional CMOS-based circuits. According to the significant role of counters in computing units, designing diverse types of counter circuits has attracted many attentions, so far. This paper presents a QCA-compatible single layer architecture for 4-bit counter circuit, however by generalizing the main idea, n-bit counter can be engendered in a similar way. The proposed circuit is designed without employing conventional flip-flops’ structures by allotting the distinct clock cycles to each counting unit. The comparison results with the best-reported structure reveal the superiority of our design in terms of circuit complexity and required layers for accessing to input and output cells. The proper output waveforms obtained by the QCADesigner tool proves the precise functionality of the proposed counter.
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