Associative IC memories with relational search and nearest-match capabilities
Associative IC memories with relational search and nearest-match capabilities
复制标题
具有关系搜索和最近匹配功能的关联 IC 存储器
DOI：
10.1109/4.135333
复制
发表时间：
1992
影响因子：
5.4
通讯作者：
L. G. Johnson
中科院分区：
文献类型：
--
作者：
S. Jalaleddine;L. G. Johnson
作者提出的设计和实现的内容可寻址存储器（CAM），执行关系和最近匹配的指令。提出了一种新的关系搜索单元的实现方法。直接的性能比较显示了一个数量级的改善，现有的设计与类似的细胞面积。设计和实现了一个神经启发的最近匹配CAM使用赢家通吃（WTA）网络。提出了一种分析这种神经启发CAM的原始方法。一个模型，它描述了WTA网络的行为推导出用于网络的设计和性能预测。分析了WTA网络在区分具有大比特不匹配的字方面的性能，并设置了上限。全功能的原型芯片已通过MOSIS使用2 μ m双金属CMOS技术制造。理论，模拟和物理芯片测量是在良好的协议。>
The authors present the design and implementation of content addressable memories (CAMs) that execute relational and nearest-match instructions. Implementation of a novel relational search cell is presented. Direct performance comparison shows an order-of-magnitude improvement over existing designs with similar cell area. The design and implementation of a neural-inspired nearest-match CAM using a winner-take-all (WTA) network is presented. An original approach to analyzing such neural-inspired CAMs is presented. A model which describes the behavior of the WTA network is derived to be utilized in the design and performance prediction of the network. Performance of the WTA network in differentiating between words with large bit mismatches is analyzed, and an upper bound is set. Fully functional prototype chips have been fabricated through MOSIS using 2- mu m double-metal CMOS technology. Theoretical, simulation, and physical chip measurements are in good agreement. >