Low Energy and Error Resilient SOT-MRAM based FPGA LUT Cell

Dongsu Kim, Jongsun Park

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

    Abstract

    As process technology scales down, large standby power has become one of the critical issues for SRAM-based Lookup-Table (LUT). Recently, spin-orbit torque magnetic random access memory (SOT-MRAM) has become a promising candidate to replace SRAM based LUT. Thanks to its non-volatile characteristic, SOT-MRAM is expected to reduce power consumption. But, high write energy and read reliability issue are still large concern. In this paper, we propose a novel SOT-MRAM-based LUT cell using two transistors and a shared inverter. By removing cascading MUX from both read and write paths, we can reduce the write energy and improve the read reliability. HSPICE circuit simulations using the 65nm process show over 50 % of write energy savings compared to the state-of-The-Art SOT-MRAM-based LUT.

    Original languageEnglish
    Title of host publicationProceedings - International SoC Design Conference 2021, ISOCC 2021
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages77-78
    Number of pages2
    ISBN (Electronic)9781665401746
    DOIs
    Publication statusPublished - 2021
    Event18th International System-on-Chip Design Conference, ISOCC 2021 - Jeju Island, Korea, Republic of
    Duration: 2021 Oct 62021 Oct 9

    Publication series

    NameProceedings - International SoC Design Conference 2021, ISOCC 2021

    Conference

    Conference18th International System-on-Chip Design Conference, ISOCC 2021
    Country/TerritoryKorea, Republic of
    CityJeju Island
    Period21/10/621/10/9

    Bibliographical note

    Funding Information:
    This work was supported by National R&D Program through the National Research Foundation of Korea funded by Ministry of Science and ICT (NRF-2020M3F3A2A01082591).

    Publisher Copyright:
    © 2021 IEEE.

    Keywords

    • lookup-Table
    • read variation
    • sot-mram
    • write energy

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Information Systems
    • Hardware and Architecture
    • Electrical and Electronic Engineering

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