VLSI Implementation of a Neural Network Model

  • Authors:
  • Hans P. Graf;LAwrence D. Jackel;Wayne E. Hubbard

  • Affiliations:
  • AT&T Bell Laboratories;AT&T Bell Laboratories;AT&T Bell Laboratories

  • Venue:
  • Computer
  • Year:
  • 1988

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Abstract

The authors describe a complementary metal-oxide-semiconductor (CMOS) very-large-scale integrated (VLSI) circuit implementing a connectionist neural-network model. It consists of an array of 54 simple processors fully interconnected with a programmable connection matrix. This experimental design tests the behavior of a large network of processors integrated on a chip. The circuit can be operated in several different configurations by programming the interconnections between the processors. Tests made with the circuit working as an associative memory and as a pattern classifier were so encouraging that the chip has been interfaced to a minicomputer and is being used as a coprocessor in pattern-recognition experiments. This mode of operation is making it possible to test the chip's behavior in a real application and study how pattern-recognition algorithms can be mapped in such a network.