发明名称 |
Content addressable memory having reduced power consumption |
摘要 |
A content addressable memory (CAM). A data portion of the CAM array includes word data storage. Each word line includes CAM cells (dynamic or static) in the data portion and a common word match line. An error correction (e.g., parity) portion of the CAM array contains error correction cells for each word line. Error correction cells at each word line are connected to an error correction match line. A match on an error correction match line enables precharging a corresponding data match line. Only data on word lines with a corresponding match on an error correction match line are included in a data compare. Precharge power is required only for a fraction (inversely exponentially proportional to the bit length of error correction employed) of the full array.
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申请公布号 |
US2003217321(A1) |
申请公布日期 |
2003.11.20 |
申请号 |
US20020145018 |
申请日期 |
2002.05.15 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HSU LOUIS L.;JI BRIAN L.;WANG LI-KONG |
分类号 |
G11C15/04;(IPC1-7):G11C29/00 |
主分类号 |
G11C15/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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