Modeling and testing comparison faults of TCAMs with asymmetric cells

Yong Jyun Hu, Yu Jen Huang, Jin Fu Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Ternary content addressable memory (TCAM) is a key component in various applications for its fast lookup operation. Symmetric and asymmetric TCAM cells are two widely used cells for implementing a TCAM array. This paper presents several comparison fault models of TCAMs with asymmetric cells based on electrical defects. Some new comparison faults which do not exist in a TCAM with symmetric cells are found. A march-like test algorithm is also proposed to cover the defined comparison faults. The test algorithm consists of 8N Write operations and (3N + 2B) Compare operations for an N × B-bit TCAM with Hit output only.

Original languageEnglish
Title of host publicationProceedings - 2009 27th IEEE VLSI Test Symposium, VTS 2009
Pages15-20
Number of pages6
DOIs
StatePublished - 2009
Event2009 27th IEEE VLSI Test Symposium, VTS 2009 - Santa Cruz, CA, United States
Duration: 3 May 20097 May 2009

Publication series

NameProceedings of the IEEE VLSI Test Symposium

Conference

Conference2009 27th IEEE VLSI Test Symposium, VTS 2009
Country/TerritoryUnited States
CitySanta Cruz, CA
Period3/05/097/05/09

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