基于阴影匹配线电压检测的凸轮失匹配低功耗检测技术

ISLPED'06 Proceedings of the 2006 International Symposium on Low Power Electronics and Design Pub Date : 2006-10-04 DOI:10.1145/1165573.1165605

Jianwei Zhang, Y. Ye, Bin-Da Liu

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引用次数: 8

摘要

提出了一种新的基于失匹配的低功耗内容寻址存储器技术。该电路采用了一种新颖的阴影匹配线电压检测方案，实现了充电路径在不匹配情况下的快速自禁用。由于大多数CAMs单词是不匹配的，因此在高搜索速度的同时显著降低了功率。仿真结果表明，采用0.13 μ m 1.2 v CMOS工艺的256字144位三元制CAM，在小于900 ps的搜索时间下，实现了字电路的0.51 fJ/bit/搜索。这一成果表明，与速度优化的节电方案相比，能量延迟积(EDP)降低了77%

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A New Mismatch-Dependent Low Power Technique with Shadow Match-Line Voltage-Detecting Scheme for CAMs

A new mismatch-dependent low-power technique is presented for content-addressable memories (CAMs). With a novel shadow match-line voltage-detecting scheme, the word circuits realize fast self-disable of the charging paths in case of mismatches. Since the majority of CAMs words are mismatched, a significant power is reduced with a high search speed. Simulation results show the proposed 256-word times 144-bit ternary CAM, using 0.13-mum 1.2-V CMOS process, achieves 0.51 fJ/bit/search for the word circuit with less than 900 ps search time. The achievement illustrates a 77% energy-delay-product (EDP) reduction as compared to the speed-optimized current-saving scheme

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ISLPED'06 Proceedings of the 2006 International Symposium on Low Power Electronics and Design

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