CAM circuit structure with low power consumption and high capacity

The invention provides a CAM circuit structure with low power consumption and high capacity. The existing CAM circuit structure is changed, the working process of the large-capacity CAM is divided into several pipeline stages, searching, addressing and latching are sequentially carried out in a partition mode, finally, all addressing results are coded in a unified mode, and then result addresses are generated and output, so that the transient large power consumption of the CAM is distributed in the multiple pipeline stages, and the instantaneous high current requirement on a chip power supply network is reduced. The structure has important application value in the large-scale low-power SoC using the CAM IP. 本发明提供了一种低功耗大容量CAM电路结构，通过改变现有CAM的电路结构，并将大容量CAM的工作过程分为几个流水级，分区顺序搜索寻址并锁存，最后将所有寻址结果统一编码后产生结果地址并输出，从而将CAM的瞬态大功耗分布在多个流水级中，减小对芯片供电网络的瞬时高电流要求。本发明对使用CAM IP的大规模低功耗SoC中具有重要的应用价值。