Earticle

초록

영어

A Boolean Combinational circuit can be made of some wires and logic gates whose outputs at any time are determined directly from the present combination of inputs without any regard to previous input. Reduction of number of gates (area) and the length of the signal path (delay) to optimize a Boolean circuit is always an overriding concern in the design of digital integrated circuit. The accepted phenomena that combinational circuit is based only on acyclic (loop-free or feed-forward) topology no longer exist. Introducing cycles in combinational circuit we may have same acyclic operation with reduced area and delay of the circuit. Cyclic circuits that do not hold state or oscillate are often the most convenient representation for certain functions, such as arbiters. The main aim of cyclic circuit is to introduce structural feedback & to avoid the logical feedback in order to get combinational primary output. In this survey, we advocate the technological depth of cyclic circuit and their design methodologies with certain merits and demerits. It includes functional analysis i.e. to determine what values will appear and the timing analysis which determine when these values will appear.

목차

Abstract
 1. Introduction
  1.1. Behavioural Definition
  1.2. Structural Definition
 2. Related Work
 3. Cycles in Combinational Circuits
 4. Logic Gate Reduction in Cyclic Environment
 5. Prevailing Cyclic Circuit
 6. Theory of Cyclic Circuit
  6.1. Circuit Model
  6.2. Analysis
  6.3. Important Parameters
  6.4. Optimality
 7. Existing Methodologies
  7.1. Branch and Bound Algorithm
  7.2. Limitations of Branch and Bound Algorithm
  7.3. Direct Truth Table Method
  7.4. Limitation of DTTM Method
 8. Merits of Cyclic Combinational Circuits
 9. Demerits of Cyclic Combinational Circuits
 10. Conclusion and Future Scope
 References

키워드

저자

• Alak Majumder [ Assistant Professor, Department of ECE, National Institute of Technology Arunachal Pradesh ]
• Bipasha Nath [ Department of ETCE, Tripura Institute of Technology, Agartala India ]
• Durba Sarkar [ Department of ETCE, Tripura Institute of Technology, Agartala India ]
• Moushumi Das [ Department of ETCE, Tripura Institute of Technology, Agartala India ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Advanced Science and Technology

• 간기

  월간

• pISSN

  2005-4238

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605