Implementation Of One bit Parallel Memory Cell using Quatum Dot Cellular Automata

The Integrated Circuit Technology(IC) is growing day by day to improve circuit performance. Quantum dot cellular automata (QCA) is one of the noval technology in nano electronics, introduced to overcome the scaling limitations takes place in CMOS Technology. This technology is suitable for development of ultra-dense low-power high-performance digital circuits. In this paper we are implementing a 2:1 multiplexer using QCA followed by its application in the designing of a 1-bit parallel memory cell. A multiplexer is an effective element for the design of many significant circuits. All the drawbacks of CMOS technology should be improved by QCA technology, as there is no power loss and temperature effect. Using cascade connection of two 2:1 multiplexers, we are designing a 4:1 multiplexer. The simulation can be done and verified using QCA designer software.