Towards the Approximation of Cell Wise Switching Time in Quantum-Dot Cellular Automata
Soudip Sinha Roy · 2017
In purpose of preserving the congenial and emergent flow in nanoscience it is the requisite stage to accomplish an eminent aspect of nano-molecular devices to attain fastest operative speed with highest dynamic accuracy. Quantum dot cellular automata prescribes the high operative speed with lower fault occurrence possibility to the nanoelectronic circuits. In this contribution one new binary to gray code converter layout has proposed which presents 29.17% area optimization in comparison to the best reported designs in this paper. The proposed design involves the multilayer concept of circuit design whereas more than one layers have undertaken to pass the signals error-freely to avoid the crossovers complications. Moreover, an elegant method for cell to cell switching time approximation has proposed theoretically which puts a major aspect on signal propagation delay and the device operating delay computation. The switching time has expressed by a sophisticated mathematical equation which enables the theoretical computation of device latency with better accuracy. All the simulations in this paper have performed with the open source software QCADesigner 2.0.3.