Content addressable memory device
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United States of America Patent
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Aug 26, 2008
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N/A
app pub date -
Sep 21, 2006
filing date -
Sep 21, 2005
priority date (Note) -
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Abstract
A content addressable memory (CAM) device can include a plurality CAM cell groups. The CAM cells of each group can be commonly connected to at least one local compare data line. A mask value circuit can be provided corresponding to each CAM cell group. Each mask value circuit can provide a mask value. At least a first logic circuit corresponding to each CAM cell group can have a first input coupled to at least a first global compare data line, a second input coupled to receive the mask value of the corresponding mask value circuit, and an output coupled to the corresponding at least first local compare data line.
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