IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
High-throughput CAM based on a synchronous overlapped search scheme
Naoya OnizawaShoun MatsunagaVincent C. GaudetWarren J. GrossTakahiro Hanyu
Author information
JOURNALS FREE ACCESS

2013 Volume 10 Issue 7 Pages 20130148

Details
Abstract

A high-speed data-search mechanism, called a synchronous overlapped search mechanism (SOSM) that enables a next-word search after searching just a few bits of the current word by simple pre-computation in most cases, is introduced for a content-addressable memory (CAM). Since there are no delay elements in the proposed hardware based on the SOSM, the hardware is robust against timing variation, maintaining high-throughput computing under serious process variation. A 128×64-bit CAM is designed with considering 30% variations of threshold voltages under a 45nm CMOS technology and operates at 4.2× faster throughput than that of a conventional CAM with 12.3% energy overhead.

Information related to the author
© 2013 by The Institute of Electronics, Information and Communication Engineers
Previous article Next article
feedback
Top