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公开(公告)号:US07158396B2
公开(公告)日:2007-01-02
申请号:US10723833
申请日:2003-11-26
申请人: Noel Hatsch , Winfried Kamp , Siegmar Köppe , Thomas Künemund , Heinz Söldner , Michel D'Argouges
发明人: Noel Hatsch , Winfried Kamp , Siegmar Köppe , Thomas Künemund , Heinz Söldner , Michel D'Argouges
IPC分类号: G11C15/00
CPC分类号: G06F7/02 , G06F2207/025 , G11C15/04
摘要: The present invention provides a CAM (content addressable memory) apparatus having: a first memory device (10) with a word line input (WL) and at least one storage node (12; 13) for storing a first bit of a data word; a second memory device (11) with a word line input (WL) and at least one storage node (14; 15) for storing a second bit of a data word; and a comparator device (16) for comparing the first and second stored bits with two precoded comparison bits fed via four inputs (20; 21; 22; 23) and for driving a hit node (17) in the event of the first stored bit corresponding to the first comparison bit and the second stored bit corresponding to the second comparison bit.
摘要翻译: 本发明提供一种CAM(内容可寻址存储器)装置,其具有:具有字线输入(WL)的第一存储器件(10)和用于存储数据字的第一位的至少一个存储节点(12; 13) 具有字线输入(WL)的第二存储器件(11)和用于存储数据字的第二位的至少一个存储节点(14; 15) 以及比较器装置(16),用于将第一和第二存储位与经由四个输入(20; 21; 22; 23)馈送的两个预编码比较位进行比较,并且用于在第一个存储位的情况下驱动命中节点(17) 对应于对应于第二比较位的第一比较位和第二存储位。