| 摘要 |
The present invention relates to a T-CAM array made up of ternary dynamic CAM cells each including a plurality of transistors. An object of the present invention is to perform a refresh operation while reading out stored data to a match line using the same current path as that for a search operation, thereby providing a highly integrated array without reducing the original search speed. According to the present invention, a rewrite data line is provided in parallel with a match line, and rewrite transistors are inserted between the rewrite data line and the storage nodes within each dynamic CAM cell. With this cell configuration, the data stored at each storage node is read out to the match line one at a time and rewritten through the rewrite data line to carry out a refresh operation.
|
