Variability-tolerant binary content addressable memory cells

Sheng Ping Yong, Jin Fu Li, Yu Jen Huang

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

Abstract

Within-chip variability has become a serious problem in modern nano-scale technologies, which is particular true for semiconductor memory designs. This paper proposes four-types of variability-tolerant (VT) binary content addressable memory (BCAM) cells. The VT-BCAM cells are designed by separating the read port from the write port such that the sizing for read static noise margin (SNM) and write trip voltage (WTV) is decoupled. By reusing the comparison logic of a BCAM cell as the read port, moreover, only an additional transistor and a read wordline are needed. Experimental results show that in comparison with the typical BCAM cell the proposed variability-tolerant BCAM cells can provide about 0.655V increment of read SNM by paying about 13% additional cell area.

Original languageEnglish
Title of host publicationProceedings of the 2009 IEEE International Workshop on Memory Technology, Design, and Testing, MTDT 2009
Pages44-49
Number of pages6
DOIs
StatePublished - 2009
Event2009 IEEE International Workshop on Memory Technology, Design, and Testing, MTDT 2009 - Hsinchu, Taiwan
Duration: 31 Aug 20092 Sep 2009

Publication series

NameProceedings of the 2009 IEEE International Workshop on Memory Technology, Design, and Testing, MTDT 2009

Conference

Conference2009 IEEE International Workshop on Memory Technology, Design, and Testing, MTDT 2009
Country/TerritoryTaiwan
CityHsinchu
Period31/08/092/09/09

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