A nearest-hamming-distance search memory with fully parallel mixed digital-analog match circuitry

  • Authors:

  • Tetsushi Koide;Hans Jürgen Mattausch;Yuji Yano;Takayuki Gyohten;Yoshihiro Soda

  • Affiliations:

  • Hiroshima University, Kagamiyama, Higashi-Hiroshima, Japan;Hiroshima University, Kagamiyama, Higashi-Hiroshima, Japan;Hiroshima University, Kagamiyama, Higashi-Hiroshima, Japan;Hiroshima University, Kagamiyama, Higashi-Hiroshima, Japan;Hiroshima University, Kagamiyama, Higashi-Hiroshima, Japan

  • Venue:
  • ASP-DAC '03 Proceedings of the 2003 Asia and South Pacific Design Automation Conference
  • Year:
  • 2003

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Abstract

A fully-parallel minimum Hamming-distance search memory has been designed, which uses digital circuitry for bit-comparison and fast analog circuitry for word-comparison as well as winner-take-all (WTA) functionality. The approach allows compact and high-performance integration in conventional CMOS technology. The 0.6μm, 2-poly, 3-metal CMOS design with 32 rows and 128 columns achieves