MTJ-based Asynchronous Circuits for Re-initialization Free Computing against Power Failures

Naoya Onizawa, Masashi Imai, Takahiro Hanyu, Tomohiro Yoneda

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

1 Citation (Scopus)

Abstract

This paper introduces CMOS/magnetic tunnel junction (MTJ)-based asynchronous single-track circuits for re-initialization free computing against power failures. In energy-harvesting applications, data processed might be lost due to frequent power failures, which usually requires the initialization phase after the power supply is recovered. To prevent the re-initialization for energy-efficient computing, the proposed single-track circuits are designed using MTJ devices as nonvolatile storage elements. As MTJ devices store data without power supply, data processed are immediately backed up to MTJ devices and are restored when necessary in order to continue operations. For safe restore operations, the proposed circuits eliminate metastable states that might occur in the backup phase. To evaluate the performance overheads due to the nonvolatile operations, the proposed single-track circuits are designed using 65nm CMOS/MTJ technologies and are compared with conventional volatile single-track circuits in several benchmarks.

Original languageEnglish
Title of host publicationProceedings - 2017 23rd IEEE International Symposium on Asynchronous Circuits and Systems, ASYNC 2017
PublisherIEEE Computer Society
Pages118-125
Number of pages8
ISBN (Electronic)9781538627495
DOIs
Publication statusPublished - 2017 Nov 3
Event23rd IEEE International Symposium on Asynchronous Circuits and Systems, ASYNC 2017 - San Diego, United States
Duration: 2017 May 212017 May 24

Publication series

NameProceedings - International Symposium on Asynchronous Circuits and Systems
Volume2017-May
ISSN (Print)1522-8681

Other

Other23rd IEEE International Symposium on Asynchronous Circuits and Systems, ASYNC 2017
CountryUnited States
CitySan Diego
Period17/5/2117/5/24

Keywords

  • Magnetic tunnel junction
  • energy harvesting
  • nonvolatile devices
  • single-track circuits

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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