Triplet-based Spike Timing Dependent Plasticity Circuit Design for three-terminal Spintronic Synapse

Beomsang Yoo, Kiryong Kim, Seong Ook Jung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Emerging nonvolatile memory technologies have been much studied to realize massively interconnected Spiking Neural Networks (SNNs) due to its high density, and energy efficiency. Nevertheless, most of the previous studies on utilizing such technologies have focused on implementing a traditional pair-based Spike Timing Dependent Plasticity (STDP) rule, which turned out to fail to reproduce multiple physiological experimental results. In this paper, we present a neuromorphic circuit for a three-terminal spintronic synapse with a triplet-based STDP rule, which is a higher order of learning mechanism. Simulation results indicate that the proposed learning circuit for the triplet-based STDP rule significantly improves learning capability in mimicking the various biological experimental data. We introduce a normalized mean-square error E value to evaluate the performance of each of the learning circuits quantitatively. The proposed learning circuit achieves E value of 1.77, which is far better than the conventional one that achieves E value of 12.2.

Original languageEnglish
Title of host publication2018 25th IEEE International Conference on Electronics Circuits and Systems, ICECS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages689-692
Number of pages4
ISBN (Electronic)9781538695623
DOIs
Publication statusPublished - 2019 Jan 17
Event25th IEEE International Conference on Electronics Circuits and Systems, ICECS 2018 - Bordeaux, France
Duration: 2018 Dec 92018 Dec 12

Publication series

Name2018 25th IEEE International Conference on Electronics Circuits and Systems, ICECS 2018

Conference

Conference25th IEEE International Conference on Electronics Circuits and Systems, ICECS 2018
CountryFrance
CityBordeaux
Period18/12/918/12/12

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

Yoo, B., Kim, K., & Jung, S. O. (2019). Triplet-based Spike Timing Dependent Plasticity Circuit Design for three-terminal Spintronic Synapse. In 2018 25th IEEE International Conference on Electronics Circuits and Systems, ICECS 2018 (pp. 689-692). [8617974] (2018 25th IEEE International Conference on Electronics Circuits and Systems, ICECS 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICECS.2018.8617974