Power considerations in banked CAMs: a leakage reduction approach

  • Authors:
  • Pedro Echeverría;José L. Ayala;Marisa López-Vallejo

  • Affiliations:
  • Departamento de Ingeniería Electrónica, Universidad Politécnica de Madrid, Madrid, Spain;Departamento de Ingeniería Electrónica, Universidad Politécnica de Madrid, Madrid, Spain;Departamento de Ingeniería Electrónica, Universidad Politécnica de Madrid, Madrid, Spain

  • Venue:
  • VLSI Design
  • Year:
  • 2008

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Abstract

The content-based access of CAMs makes them of great interest in lookup-based operations. However, the large amounts of parallel comparisons required cause an expensive cost in power dissipation. In this work, we present a novel banked precomputation-based architecture for low-power and storage-demanding applications where the reduction of both dynamic and leakage power consumption is addressed. Experimental results show that the proposed banked architecture reduces up to an 89% of dynamic power consumption during the search process while the leakage power consumption is also minimized up to a 91%.