MTJ based non-volatile flip-flop in deep submicron technology

Youngdon Jung, Jisu Kim, Kyungho Ryu, Scong Ook Jung, Jung Pill Kim, Seung H. Kang

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

11 Citations (Scopus)

Abstract

The NVFF (Non-Volatile Flip-flop) using a MTJ is one of the powerful solutions for the low power system. However, the previous NVFF cannot provide a sufficient current to write the data into the MTJ in deep submicron technology. This problem occurs due to the lowered supply voltage (1.1V for core device in 45nm technolog) with technology scaling. It can be resolved by increasing the supply voltage. However, the increased supply voltage causes a reliability problem of the core device. In order to overcome this problem, the proposed write circuit adopts an IO device with an IO supply voltage of 1.8V. In addition, the low-skewed NAND (LS-NAND) is used to efficiently interface the two supply voltage levels of 1.1V and 1.8V and to minimize the short circuit current in the write circuit. In this paper, the NVFF with the proposed write circuit is verified by HSPICE simulation using an industry compatible 45nm model parameter. The write current of the proposed write circuit is 60% greater than that of the previous write circuit and is sufficient for the proper write operation.

Original languageEnglish
Title of host publication2011 International SoC Design Conference, ISOCC 2011
PublisherIEEE Computer Society
Pages424-427
Number of pages4
ISBN (Print)9781457707100
DOIs
Publication statusPublished - 2011
Event8th International SoC Design Conference 2011, ISOCC 2011 - Jeju, Korea, Republic of
Duration: 2011 Nov 172011 Nov 18

Publication series

Name2011 International SoC Design Conference, ISOCC 2011

Other

Other8th International SoC Design Conference 2011, ISOCC 2011
CountryKorea, Republic of
CityJeju
Period11/11/1711/11/18

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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  • Cite this

    Jung, Y., Kim, J., Ryu, K., Jung, S. O., Kim, J. P., & Kang, S. H. (2011). MTJ based non-volatile flip-flop in deep submicron technology. In 2011 International SoC Design Conference, ISOCC 2011 (pp. 424-427). (2011 International SoC Design Conference, ISOCC 2011). IEEE Computer Society. https://doi.org/10.1109/isocc.2011.6138622