UTHM Institutional Repository

Implementation of adiabatic dynamic logic in bit full adder

Zainal, Mohd Shamian and Hamzah, Shipun Anuar and Ubin, Aizan and I Chai, Som Shis Implementation of adiabatic dynamic logic in bit full adder. In: TISD 2006, Technology and Innovation for Sustainable Development Conference , 25-26 January 2006, Thailand.


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Very large scale integrated circuit (VLSI) is the technology of designing many thousands of semiconductor devices on a single chip with the small of power dissipation. However, the power dissipation still becomes a critical concern in most digital CMOS circuits. The main part of the power dissipation is caused by the capacitive signal nodes are rapidly charged and discharge through MOS devices. Continuing to improve the performance and integrating more function into each chip, feature size has to continue to shrink. As the result, the magnitude of power per unit area increases. Adiabatic Dynamic Logic is referred to as the energy recovery technique. The energy used to charge the capacitive signal nodes in a circuit may be recovered during discharge and stored for recycle. The main advantage of this technique is to reduce the power dissipation in the CMOS circuits. In this paper, the logic gates such like Inveter, Nand Nor and 1 Bit Full Adder had been designed by implementing the adiabatic dynamic technique. As the results, the count of transistors had been found reduced about 50 percent and the power consumed in the adiabatic dynamic 1 bit adder is 3.23x10-26 Watts compared to conventional technique which consumed about 233x10-12 Watts. This showed that the technique could reduce the power dissipation more than 90%. The circuits were designed using a 1.2μm technology of CMOS process and the performance had been tested at frequency of 27 MHz.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > T Technology (General)
Depositing User: Normajihan Abd. Rahman
Date Deposited: 28 Aug 2012 08:38
Last Modified: 28 Aug 2012 08:38
URI: http://eprints.uthm.edu.my/id/eprint/2740
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