发明公开
- 专利标题: Content addressable memory cell
- 专利标题(中): Assoziativspeicherzelle。
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申请号: EP85401637.5申请日: 1985-08-13
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公开(公告)号: EP0175603A2公开(公告)日: 1986-03-26
- 发明人: Liu, Pin-Wu
- 申请人: FAIRCHILD CAMERA & INSTRUMENT CORPORATION
- 申请人地址: 464 Ellis Street Mountain View California 94042 US
- 专利权人: FAIRCHILD CAMERA & INSTRUMENT CORPORATION
- 当前专利权人: FAIRCHILD CAMERA & INSTRUMENT CORPORATION
- 当前专利权人地址: 464 Ellis Street Mountain View California 94042 US
- 代理机构: Chareyron, Lucien
- 优先权: US642849 19840821
- 主分类号: G11C15/00
- IPC分类号: G11C15/00
摘要:
7 A content addressable memory (CAM) cell signals a match/no-match condition between the content of a cell and the data applied to the comparison circuit by means of a voltage signal. In the associative memory mode, the associative memory comparison circuit compares the data on the bit lines to the data stored in the RAM cells. If there is a predetermined condition of either match or mismatch, a flag line driver transistor coupling the flag line to a bias voltage source such as ground changes its state of conductivity thereby altering the voltage on the flag line. The voltage signal thus produced indicates the match or mismatch condition.
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