Selective Match-Line Energizer Content Addressable Memory(SMLE -CAM)

نویسندگان

  • V. Mohammed Zackriya
  • Harish M. Kittur
چکیده

implemented in TSMC 90 nm technology and its robustness across PVT variation is verified. The post-layout simulation result shows, it has energy metric of 0.115 fJ/bit/search with search time 361.6 ps, the best reported so far. The maximum operating frequency is 1GHz. Content Addressable Memory (CAM) retrieves address of the matched content location in memory against the search data. CAM is capable of high speed search by implementing parallel bit by bit search within one clock cycle [1]. CAM is extensively used in applications like IP routing [2], data compression & image processing viz., Gray coding [3], XML parsing [4], where software search algorithms fail to attain high speed. CAM is power hungry due to parallel data processing; therefore to reduce power and increase speed, many works with different match-line strategies [5-15], have been proposed. The traditional CAM is designed using either NOR-logic match-line [1] which introduces low search delay with the cost of high power consumption due to high switching activities or NAND-logic match-line [1] which introduces low power consumption with the cost of high search delay because of long pull down path. Thus when the whole CAM is built using NOR-logic, due to drain capacitance it consumes more power for match-line switching since most of the CAM words are mismatched in practical applications. A hybrid CAM is proposed [5], where the high speed search performance of the NOR-logic match-line and the low power performance of the

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عنوان ژورنال:
  • CoRR

دوره abs/1406.7662  شماره 

صفحات  -

تاریخ انتشار 2014