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General Information
    • ISSN: 1793-8236 (Online)
    • Abbreviated Title Int. J. Eng. Technol.
    • Frequency:  Quarterly 
    • DOI: 10.7763/IJET
    • APC: 500 USD
    • Managing Editor: Ms. Jennifer Zeng
    • Abstracting/ Indexing: Inspec (IET), CNKI Google Scholar, EBSCO, ProQuest, Crossref, Ulrich Periodicals Directory, Chemical Abstracts Services (CAS), etc.
    • E-mail: ijet_Editor@126.com
IJET 2011 Vol.3(3):279-286 ISSN: 1793-8236
DOI: 10.7763/IJET.2011.V3.238

Low-Power Flip-Flops: Survey, Comparative Evaluation, and a New Design

Ahmed Sayed and Hussain Al-Asaad

Abstract—Synchronous logic design is the dominant main stream integrated circuit design methodology. Flip-flops are an inherent building block in any synchronous design. Furthermore flip-flops constitute most of the load on the clock distribution and power networks, which are the main power consuming networks of a synchronous integrated circuit. We survey, design and simulate a superset of flip-flops designed for low power and high performance. We highlight the basic design features of these flip-flops and evaluate them based on timing characteristics, power consumption, and other metrics. Moreover, we propose a new flip-flop design. We go in depth into a finer granularity comparison of the lowest peak power surveyed flip-flops reported in the literature; we show the competitiveness of the new design and make our recommendations.

Index Terms—Flip-flop design, Low-Power circuits, Power and delay estimation, VLSI circuits.


Cite: Ahmed Sayed and Hussain Al-Asaad, "Low-Power Flip-Flops: Survey, Comparative Evaluation, and a New Design," International Journal of Engineering and Technology vol. 3, no. 3, pp. 279-286, 2011.

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