نتایج جستجو برای: half adder

تعداد نتایج: 192285  

2003
Wei Wang Konrad Walus G. A. Jullien

In this paper, a novel quantum-dot cellular automata (QCA) adder design is presented that reduces the number of QCA cells compared to previously reported designs. The proposed one-bit QCA adder structure is based on a new algorithm that requires only three majority gates and two inverters for the QCA addition. By connecting n one-bit QCA adders, we can obtain an n-bit carry look-ahead adder wit...

1998
Robert A. Freking Keshab K. Parhi

This paper presents a novel approach for theoretical estimation of power consumption in digital binary adders. Closed-form expressions for power consumption of four different types of binary adders – the ripple-carry adder, the Manchester adder, a multiplexor-based carry-select adder and an efficient tree-based look-ahead adder – are derived in terms of word-length and pre-computed technologysp...

2014
Hatem Boukadida Zied Gafsi Kamel Besbes

A power-efficient 8-bits digital adder using the new arithmetic A2 redundant binary representation is presented. This structure is very suitable for implementation in VLSI of mixed-signal circuits built around Multiplier Digital to Analog Converter (MDAC) cells. Using a reduced transistor count Full-Adder cells shows that our approach significantly reduces the power consumption of such adders c...

2017
Sanjay S. Chopade Dinesh V. Padole

Processor speed largely governed by the multiplier architectures. It is desired to have faster ALU with lower power consumption for portable applications to have good battery life. Hence, there is need to address different multiplier architectures. In this paper, the analysis of 4-bit multiplier using a Vedic Mathematics (Urdhva Tiryagbhyam sutra) and conventional multiplier with two different ...

2015
Vahid Foroutan Keivan Navi

In this paper a new area efficient, high-speed and ultra-low power 1-bit full adder cell is presented. The performance: power, time delay and power delay product (PDP) of the proposed adder cell has been analyzed in comparison with the four existent low-power, high-speed adders. The circuits being studied are optimized for energy efficiency at 0.18-μm CMOS process technology and intensive simul...

2012
Ankur Saxena Mohd. Tauheed Khan

Reversible quantum computer is gaining interest for the future computer system. With the advent of quantum computer and reversible logic, design and implementation of all devices has received more attention. BCD digit adder is the basic unit of the more precise decimal computer arithmetic. The research objective is to increase speed of operation for addition of BCD numbers while minimizing the ...

Journal: :CoRR 2011
Nirlakalla Ravi A. Satish T. Jayachandra Prasad T. Subba Rao

In this paper a low power and low area array multiplier with carry save adder is proposed. The proposed adder eliminates the final addition stage of the multiplier than the conventional parallel array multiplier. The conventional and proposed multiplier both are synthesized with 16-T full adder. Among Transmission Gate, Transmission Function Adder, 14-T, 16-T full adder shows energy efficiency....

2016
Puneet Kumar Sunita Rani

Addition is one of the vital parts of any electronic system design because every electronic system needs this basic operation. Researchers have done a lot of work on various adders to optimise their performance. So, they found that Carry Save adder is best in terms of delay calculation and power consumption. That is why this proposed work use this adder. This paper is primarily focus on design ...

2013
K. Kalaiselvi H. Mangalam Tung Thanh Hoang Magnus Själander Per Larsson-Edefors Wen-Chang Yeh Chein-Wei Jen C. Bickerstaff Michael Schulte Earl E. Swartz lander Magdy Bayoumi Mark R. Santoro Mark A. Horowitz Vishwas M. Rao Vojin G. Oklobdzija David Villeger Simon S. Liu Ghassem Jaberipur Naofumi Takagi Hiroto Yasuura Shuzo Yajima Kiamal Z. Pekmestzi Young-Ho Seo Dong-Wook Kim

With the growing importance of electronic products in day-to-day life, the need for portable electronic products with low power consumption largely increases. In this paper, an area efficient high speed and low power Multiply Accumulator unit (MAC) with carry look-ahead adder (CLA) as final adder is being designed. In the same MAC architecture design in final adder stage of partial product unit...

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