Print Email Facebook Twitter Efficiency of Double-barrier Magnetic Tunnel Junction-based Digital eNVM Array for Neuro-Inspired Computing Title Efficiency of Double-barrier Magnetic Tunnel Junction-based Digital eNVM Array for Neuro-Inspired Computing Author Moposita, Tatiana (University of Calabria; Sorbonne Université, Paris) Garzon, Esteban (University of Calabria) Crupi, Felice (University of Calabria) Trojman, Lionel (Télécom ParisTech.; ISEP) Vladimirescu, A. (TU Delft QCD/Sebastiano Lab; University of California) Lanuzza, Marco (University of Calabria) Date 2023 Abstract This brief deals with the impact of spin-transfer torque magnetic random access memory (STT-MRAM) cell based on double-barrier magnetic tunnel junction (DMTJ) on the performance of a two-layer multilayer perceptron (MLP) neural network. The DMTJ-based cell is benchmarked against the conventional single-barrier MTJ (SMTJ) counterpart by means of a comprehensive evaluation carried out through a state-of-the-art device-to-algorithm simulation framework. The benchmark is based on the MNIST handwritten dataset, Verilog-A MTJ compact models developed by our group, and 0.8 V FinFET technology. Our results point out that the use of DMTJ-based STT-MRAM cells to implement digital embedded non-volatile memory (eNVM) synaptic core allows write/read energy and latency improvements of about 53%/61% and 66%/17%, respectively, as compared to the SMTJ-based equivalent design. This is achieved by ensuring a reduced area footprint and a learning accuracy of about 91%. Such results make the DMTJ-based STT-MRAM cell a good eNVM option for neuro-inspired computing. Subject Computer architectureDouble-barrier magnetic tunnel junction (DMTJ)energy-efficiencyMagnetic tunnelingMicroprocessorsMNIST datasetmultilayer perceptron (MPL)Neuronsonline classificationSTT-MRAMSwitchesSynapsesTraining To reference this document use: http://resolver.tudelft.nl/uuid:a2b4275e-2b53-4678-b707-a8fb840b9cdb DOI https://doi.org/10.1109/TCSII.2023.3240474 ISSN 1549-7747 Source IEEE Transactions on Circuits and Systems Part 2: Express Briefs, 70 (3), 1254-1258 Part of collection Institutional Repository Document type journal article Rights © 2023 Tatiana Moposita, Esteban Garzon, Felice Crupi, Lionel Trojman, A. Vladimirescu, Marco Lanuzza Files PDF Efficiency_of_Double_Barr ... puting.pdf 1.34 MB Close viewer /islandora/object/uuid:a2b4275e-2b53-4678-b707-a8fb840b9cdb/datastream/OBJ/view