TY - GEN
T1 - Realization of neural coding by stochastic switching of magnetic tunnel junction
AU - Zhang, Deming
AU - Zeng, Lang
AU - Gong, Fanghui
AU - Gao, Tianqi
AU - Gao, Shaolong
AU - Zhang, Youguang
AU - Zhao, Weisheng
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/4/20
Y1 - 2016/4/20
N2 - In this paper, we present the realization of neural rate coding with probabilistic spike trains by using two back-to-back magnetic tunnel junctions (MTJs) for the bio-inspired computing applications. By exploiting the intrinsic stochastic switching of the MTJ device between two different resistance states, an analog stimulus can be converted into a probabilistic spike train and its spike rate can be modulated by the switching probability, which depends on the magnitude of the stimulus. To implement such conversion, we propose a hybrid CMOS/MTJ circuit. By using a physics-based MTJ compact model and a commercial CMOS 40nm design kit, its functionality has been validated. Additionally, we also investigate the relationship between switching probability and stimulus by Monte Carlo simulations.
AB - In this paper, we present the realization of neural rate coding with probabilistic spike trains by using two back-to-back magnetic tunnel junctions (MTJs) for the bio-inspired computing applications. By exploiting the intrinsic stochastic switching of the MTJ device between two different resistance states, an analog stimulus can be converted into a probabilistic spike train and its spike rate can be modulated by the switching probability, which depends on the magnitude of the stimulus. To implement such conversion, we propose a hybrid CMOS/MTJ circuit. By using a physics-based MTJ compact model and a commercial CMOS 40nm design kit, its functionality has been validated. Additionally, we also investigate the relationship between switching probability and stimulus by Monte Carlo simulations.
KW - Monte Carlo simulations
KW - bio-inspired computing
KW - magnetic tunnel junction (MTJ)
KW - neural rate coding
KW - probabilistic spike train
KW - stochatic switching
UR - https://www.scopus.com/pages/publications/84978161536
U2 - 10.1109/NVMTS.2015.7457499
DO - 10.1109/NVMTS.2015.7457499
M3 - 会议稿件
AN - SCOPUS:84978161536
T3 - 2015 15th Non-Volatile Memory Technology Symposium, NVMTS 2015
BT - 2015 15th Non-Volatile Memory Technology Symposium, NVMTS 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 15th Non-Volatile Memory Technology Symposium, NVMTS 2015
Y2 - 12 October 2015 through 14 October 2015
ER -