Patent · US Expired

Content addressable memory cell

US7227765B2 · kind B2 · utility

10Cited by
6References
23Claims
0Family size

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Key dates

Filing dateOct 20, 2004
Grant dateJun 5, 2007
Priority date
Expiry dateJan 19, 2025

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C15/046
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A content addressable memory cell for a non-volatile content addressable memory, including a non-volatile storage element for storing a content digit, a selection input for selecting the memory cell, a search input for receiving a search digit, and a comparison circuit arrangement for comparing the search digit to the content digit and for driving a match output of the memory cell so as to signal a match between the content digit and the search digit. The non-volatile storage element include at least one phase-change memory element for storing in a non-volatile way the respective content digit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.