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US 7,248,492 B1Granted
Method and apparatus for CAM with reduced cross-coupling interference
AssigneeIntegrated Device Technology, Inc.
InventorsChuen-Der Lien, Chau-Chin Wu
Life of this patent
Estimating the term…
Abstract
A method and apparatus for a CAM with reduced cross-coupling interference have been disclosed.
Claims8
An apparatus comprising:
- a value memory cell for storing a data value;
- a value word line capable of allowing communication of said value memory cell with one or more value data lines;
- a mask memory cell for storing a mask value;
- a mask word line capable of allowing communication of said value mask memory cell with one or more mask data lines;
- and
- a NXOR comparison circuit having a high match line, a low match line, and inputs, said inputs in communication with said data value, said mask value, and one or more compare data lines.
3 more elements
The apparatus of claim of 1 wherein said value word line and said mask word line are the same line.
An apparatus comprising:
- a value memory cell for storing a data value;
- a value word line capable of allowing communication of said value memory cell with one or more value data lines;
- a mask memory cell for storing a mask value;
- a mask word line capable of allowing communication of said value mask memory cell with one or more mask data lines;
- a comparison circuit having a match line, and inputs, said inputs in communication with said data value, said mask value, and one or more compare data lines;
- and
- a connection to said match line separated from said one or more compare data lines by one or more lines selected from the group consisting of said value word line, said one or more value data lines, said mask word line, a power supply line, a ground line, and one or more match lines other than said match line.
4 more elements
The apparatus of claim of 6 wherein said value word line and said mask word line are the same line.
Dependencies are inferred from the claim text.