Separatrices in high-dimensional state space: System-theoretical tangent computation and application to SRAM dynamic stability analysis

Yong Zhang, Peng Li, Garng M. Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

Shrinking access cycle times and the employment of dynamic read/write assist circuits have made the use of standard static noise margins increasingly problematic for scaled SRAM designs. Recently proposed dynamic noise margins precisely characterize dynamic stability using the conceptof stability boundaries, or separatrices, and provide elegant separatrix tracing algorithm. However, the present separatrix characterization method is only efficient in the twodimensional state space and hence not practically applicable to fully extracted SRAM designs with additional parasitics. We present a rigorous system-theoretical approach for computing the tangent approximation to the separatrix in the high-dimensional space. Using this as a basis, we develop fast method based on tangent approximation and exact iterative-refinement method for analyzing SRAM dynamic stability. The proposed algorithms have been implemented as a SPICE-like CAD tool and are broadly applicable to efficient computation of dynamic noise margins.

Original languageEnglish
Title of host publicationProceedings of the 47th Design Automation Conference, DAC '10
Pages567-572
Number of pages6
DOIs
Publication statusPublished - 7 Sep 2010
Event47th Design Automation Conference, DAC '10 - Anaheim, CA, United States
Duration: 13 Jun 201018 Jun 2010

Publication series

NameProceedings - Design Automation Conference
ISSN (Print)0738-100X

Other

Other47th Design Automation Conference, DAC '10
CountryUnited States
CityAnaheim, CA
Period13/6/1018/6/10

    Fingerprint

Keywords

  • Dynamic stability
  • SRAM
  • Separatrix

ASJC Scopus subject areas

  • Computer Science Applications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Modelling and Simulation

Cite this

Zhang, Y., Li, P., & Huang, G. M. (2010). Separatrices in high-dimensional state space: System-theoretical tangent computation and application to SRAM dynamic stability analysis. In Proceedings of the 47th Design Automation Conference, DAC '10 (pp. 567-572). (Proceedings - Design Automation Conference). https://doi.org/10.1145/1837274.1837414