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IEICE TRANSACTIONS on Fundamentals

Setup Time, Hold Time and Clock-to-Q Delay Computation under Dynamic Supply Noise

Takaaki OKUMURA, Masanori HASHIMOTO

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Summary :

This paper discusses how to cope with dynamic power supply noise in FF timing estimation. We first review the dependence of setup and hold times on supply voltage, and point out that setup time is more sensitive to supply voltage than hold time, and hold time at nominal voltage is reasonably pessimistic. We thus propose a procedure to estimate setup time and clock-to-Q delay taking into account given voltage drop waveforms using an equivalent DC voltage approach. Experimental results show that the proposed procedure estimates setup time and clock-to-Q delay fluctuations well with 5% and 3% errors on average.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E94-A No.10 pp.1948-1953
Publication Date
2011/10/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E94.A.1948
Type of Manuscript
PAPER
Category
VLSI Design Technology and CAD

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