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

Author

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

Author_Institution

Dept. of Inf. Electron. Eng., Ewha Woman´´s Univ., Seoul

Volume

43

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2677

Lastpage

2679

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

Keywords

Boolean functions; CMOS integrated circuits; SPICE; integrated logic circuits; magnetic tunnelling; magnetoresistive devices; Boolean functions; CMOS; HSPICE simulation; data storage applications; digital logic systems; magnetic tunnel junction elements; magnetologic elements; metal oxide semiconductors; sequential logic functions; writing-current drivers; Boolean functions; CMOS logic circuits; Circuit simulation; Computer architecture; Counting circuits; Driver circuits; Logic devices; Logic functions; Magnetic devices; Memory; Counting circuits; magnetic tunnel junction (MTJ); magnetoresistive devices; nonvolatile logic devices;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.893412

Filename

4202923