Novel Efficient Designs for QCA JK Flip flop Without Wire-crossing

Abstract

Recently, the conventional CMOS technology faces serious challenging problems due to the physical limitations in its feature size reduction. Quantum dot cellular automata (QCA) with having the higher speed, smaller size and lower power consumption has the potential to be one of the features promising nanotechnologies to replace CMOS technology. In this paper, novel efficient designs for QCA JK flip flop without wire-crossing are presented. The proposed JK flip flops are designed and tested in QCADesigner software. In comparison with the previous QCA and CMOS JK flip flops, our designs are optimized in terms of cell count, area, power and delay. Therefore, these structures can be used in designing of QCA based circuits