Title :
Efficient QCA design of single-bit and multi-bit subtractors
Author :
Pudi, Vikramkumar ; Sridharan, K.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Madras, Chennai, India
Abstract :
The design of digital circuits in Quantum Dot Cellular Automata (QCA) has been of active interest in the last decade. While there are many proposals for design of adders, work on subtractors is limited. This paper presents efficient QCA designs of single-bit and multi-bit subtractors. The designs are based on new results on majority logic. Simulations in QCADesigner are presented. The complexity of the proposed designs in terms of cell count and area are also given.
Keywords :
adders; cellular automata; logic circuits; quantum dots; QCADesigner; adders; digital circuits; majority logic; multibit subtractors; quantum dot cellular automata; single-bit subtractors; Clocks; Inverters; Junctions; Logic gates; Multiplexing; Quantum dots; Switches; Nanoelectronic circuits; majority logic; multi-bit subtractor; quantum dot cellular automata;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2013 13th IEEE Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-0675-8
DOI :
10.1109/NANO.2013.6720958
