A cascaded charge-sharing technique for an EDP-efficient match-line design in CAMs

Jianwei Zhang, Yizheng Ye, Binda Liu, Jinbao Lan

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A novel cascaded charge-sharing technique is presented in content-addressable memories (CAMs), which not only effectively reduces the match-line (ML) power by using a pre-select circuit, but also realizes a high search speed. Pre-layout simulation results show a 75.9% energy-delay-product (EDP) reduction of the MLs over the traditional precharge-high ML scheme and 41.3% over the segmented ML method. Based on this technique, a test-chip of 64-word × 144-bit ternary CAM (TCAM) is implemented using a 0.18-μm 1.8-V CMOS process, achieving an 1.0 ns search delay and 4.81 fJ/bit/search for the MLs.

Original languageEnglish
Article number065009
JournalJournal of Semiconductors
Volume30
Issue number6
DOIs
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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