Title :
All-magnetic analog associative memory
Author :
Calayir, Vehbi ; Pileggi, Larry
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
Associative memories and neurocomputing systems represent a massively parallel computing paradigm. Although extremely efficient for certain applications such as pattern recognition and image processing, such systems are not efficiently implemented using traditional CMOS design technology due to the required circuit complexity and corresponding power consumption to perform neural computations and represent programmable connections between artificial neurons. In this paper we propose to use newly-proposed mCell devices, which act as switchable non-volatile resistances, to implement an all-magnetic analog associative memory. We describe our building blocks for both artificial neurons and synapses using such magnetic devices. We verify the functionality of our proposed architecture using circuit simulation models of the mCell devices based on the first-order device physics.
Keywords :
CMOS integrated circuits; circuit simulation; magnetic storage; magnetic tunnelling; power consumption; CMOS design technology; all-magnetic analog associative memory; artificial neurons; associative memories; circuit complexity; circuit simulation models; first-order device physics; image processing; magnetic devices; neurocomputing systems; newly-proposed mCell devices; parallel computing; pattern recognition; power consumption; switchable non-volatile resistances; Associative memory; Magnetic devices; Magnetic domain walls; Magnetic domains; Magnetic tunneling; Neurons; Resistance;
Conference_Titel :
New Circuits and Systems Conference (NEWCAS), 2013 IEEE 11th International
Conference_Location :
Paris
Print_ISBN :
978-1-4799-0618-5
DOI :
10.1109/NEWCAS.2013.6573563