Title: Synthesis of standard functions and generic Ex-OR module using layered T gate

Authors: Chiradeep Mukherjee; Saradindu Panda; Asish Kumar Mukhopadhyay; Bansibadan Maji

Addresses: Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, India ' Department of Electronics and Communication Engineering, Narula Institute of Technology, Kolkata, India ' Budge Budge Institute of Technology, Kolkata-700137, India ' Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, India

Abstract: The quantum-dot cellular automata (QCA) which is the most promising technology in the paradigm of nano electronics has already been claimed to possess ultra-high packing density, high clocking speed and extremely low power dissipation. This work proposes a novel design of high fan-in exclusive-OR gate by using the layered T Gate of QCA. The 'robustness analysis' of layered T gate has also been done to focus the advantage of layered T architecture in generic sense considering the defects of QCA. The synthesis of 'three-literal standard functions' by using layered T gate reports an average 29.31% less area requirement as compared to the best reported design so far. Primarily two-input layered T exclusive OR shows 18.75% less cell requirement and 6.20% less area requirement as compared to the conventional two-input exclusive OR designs. Finally, two-input layered T exclusive OR module extends its design methodology to implement high fan-in exclusive OR gate designs with proper formulation of O-Cost and delay in QCA.

Keywords: quantum-dot cellular automata; QCA; area utilisation factor; O-cost; layered T gate; defects of QCA; standard function; exclusive OR gate; QCADesigner; high performance systems architecture.

DOI: 10.1504/IJHPSA.2017.087164

International Journal of High Performance Systems Architecture, 2017 Vol.7 No.2, pp.70 - 86

Available online: 28 Sep 2017

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