A Simple Arithmetic Logic Unit (12 ALU) Design Using Quantum Dot Cellular Automata

摘要

A Quantum Dot Cellular Automata (QCA) is a nanotechnology, which in future can be used as an alternative for transistor based technology. A simple 12 ALU is designed using QCA. A simple 12 ALU is capable of performing 12 operations depending on the input signals. In order to tackle the problem of input connections with the circuit a second layer of QCA is used to transfer input signals to the points located deep inside the complicated circuits. In this design we have tried to minimize the number of gates, cells and area. QCA designer was used to design and simulate the circuit.