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A low-power precomputation-based fully parallel content-addressable memory

机译:低功耗基于预计算的完全并行内容可寻址存储器

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摘要

This paper presents a novel VLSI architecture for a fully parallel precomputation-based content-addressable memory (PB-CAM) with low-power, low-cost, and low-voltage features. This design is based on a precomputation approach that saves not only power consumption of the CAM system, but also reduces transistor count and operating voltage of the CAM cell. In addition, the proposed PB-CAM word structure adopts the static pseudo-nMOS circuit design to improve system performance. The whole design was fabricated with the TSMC 0.35-Μm single-poly quadruple-metal CMOS process. With a 128 words by 30 bits CAM size, the measurement results indicate that the proposed circuit works up to 100 MHz with power consumption of 33 mW at 3.3-V supply voltage and works up to 30 MHz under 1.5-V supply voltage.
机译:本文提出了一种新颖的VLSI架构,该架构用于具有低功耗,低成本和低电压功能的完全并行的基于预计算的内容可寻址存储器(PB-CAM)。该设计基于预计算方法,该方法不仅可以节省CAM系统的功耗,还可以减少CAM单元的晶体管数量和工作电压。另外,所提出的PB-CAM字结构采用静态伪nMOS电路设计以提高系统性能。整个设计采用TSMC0.35-μm单重四金属CMOS工艺制造。测量结果具有128字乘30位CAM大小,测量结果表明,所建议的电路在3.3V电源电压下的工作频率高达100MHz,功耗为33mW,而在1.5V电源电压下的工作频率高达30MHz。

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