Race-free mixed serial-parallel comparison for low power content addressable memory

Seong Ook Jung; Sei Seung Yoon

doi:10.1093/ietfec/e91-a.3.895

Race-free mixed serial-parallel comparison for low power content addressable memory

Seong Ook Jung, Sei Seung Yoon

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This letter presents a race-free mixed serial-parallel comparison (RFMSPC) scheme which uses both serial and parallel CAMs in a match line. A self-reset search line scheme for the serial CAM is proposed to avoid the timing race problem and additional timing penalties. Various 32 entry CAMs are designed using 90 nm 1.2 V CMOS process to verify the proposed RFMSPC scheme. It shows that the RFMSPC saves power consumption by 40%, 53% and 63% at the cost of a 4%, 6% and 16% increase in search time according to 1, 2, and 4 serial CAM bits in a match line.

Original language	English
Pages (from-to)	895-898
Number of pages	4
Journal	IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Volume	E91-A
Issue number	3
DOIs	https://doi.org/10.1093/ietfec/e91-a.3.895
Publication status	Published - 2008

All Science Journal Classification (ASJC) codes

Signal Processing
Computer Graphics and Computer-Aided Design
Electrical and Electronic Engineering
Applied Mathematics

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10.1093/ietfec/e91-a.3.895

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abstract = "This letter presents a race-free mixed serial-parallel comparison (RFMSPC) scheme which uses both serial and parallel CAMs in a match line. A self-reset search line scheme for the serial CAM is proposed to avoid the timing race problem and additional timing penalties. Various 32 entry CAMs are designed using 90 nm 1.2 V CMOS process to verify the proposed RFMSPC scheme. It shows that the RFMSPC saves power consumption by 40%, 53% and 63% at the cost of a 4%, 6% and 16% increase in search time according to 1, 2, and 4 serial CAM bits in a match line.",

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Race-free mixed serial-parallel comparison for low power content addressable memory

Abstract

All Science Journal Classification (ASJC) codes

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