The 3-bit gray counter based on magnetic-tunnel-junction elements

Seungyeon Lee, Nakmyeong Kim, Heejung Yang, Gamyoung Lee, Seungjun Lee, Hyungsoon Shin

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

A magnetic-tunnel-junction (MTJ) element has been widely studied for data storage applications. An MTJ element can also be used to compute Boolean functions and store the output result. A magnetologic device based on this MTJ element can constitute sequential logic functions as well as combinational logic. Counter is one of the most frequently used sequential logic blocks in digital logic systems. In this paper, a novel architecture of a 3-bit gray counter based on magnetologic elements is presented. It is shown that ten MTJ elements with complementary metal-oxide-semiconductor (CMOS) circuits for sense amplifier and writing-current driver can make a 3-bit gray counter. HSPICE simulation results are presented to verify the functionality of the proposed circuits.

Original languageEnglish
Pages (from-to)2677-2679
Number of pages3
JournalIEEE Transactions on Magnetics
Volume43
Issue number6
DOIs
StatePublished - Jun 2007

Keywords

  • Counting circuits
  • Magnetic tunnel junction (MTJ)
  • Magnetoresistive devices
  • Nonvolatile logic devices

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