The 3-Bit Gray Counter Based on Magnetic-Tunnel-Junction Elements

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...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2007-06, Vol.43 (6), p.2677-2679
Main Authors: LEE, Seungyeon, KIM, Nakmyeong, YANG, Heejung, LEE, Gamyoung, LEE, Seungjun, SHIN, Hyungsoon
Format: Article
Language:English
Subjects:
Boolean functions
Circuit simulation
Circuits
CMOS
CMOS logic circuits
Computer architecture
Computer simulation
Counting circuits
Cross-disciplinary physics: materials science
rheology
Data storage
Driver circuits
Exact sciences and technology
Logic
Logic devices
Logic functions
Magnetic devices
magnetic tunnel junction (MTJ)
Magnetism
magnetoresistive devices
Materials science
Mathematical analysis
Memory
nonvolatile logic devices
Other topics in materials science
Physics
Stores
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Summary: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
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2007.893412