QCA Based Design of Novel Low Power n-bit Ripple Carry Incrementer and
Ripple Carry Decrementer
Abstract
This paper shows the design of the newly made ‘n’ bit incrementer and
decrementer circuit using quantum-dot cellular automata (QCA). Ripple
carry incrementer and decrementer are crucial for performing two
numbers’ increment or decrement operation. This paper outlines the
design of a novel low power ripple carry incrementer and ripple carry
decrementer circuit based on QCA. The proposed ripple carry incrementer
and ripple carry decrementer circuit are achieved with a new layout of
the XOR gate, AND gate, and half adder circuit. This newly designed XOR
and half adderare compared with state-of-the-artdesigns.QCA Designer
2.0.3 is used to design the circuits. The simulation results of 4-bit,
8-bit, and 16-bit incrementer and decrementer circuits are by the
theoretical results.