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Second-order associative memory circuit hardware implemented by the evolution from battery-like capacitance to resistive switching memory.


ABSTRACT: Memristor-based Pavlov associative memory circuit presented today only realizes the simple condition reflex process. The secondary condition reflex endows the simple condition reflex process with more bionic, but it is only demonstrated in design and involves the large number of redundant circuits. A FeO x -based memristor exhibits an evolution process from battery-like capacitance (BLC) state to resistive switching (RS) memory as the I-V sweeping increase. The BLC is triggered by the active metal ion and hydroxide ion originated from water molecule splitting at different interfaces, while the RS memory behavior is dominated by the diffusion and migration of ion in the FeO x switching function layer. The evolution processes share the nearly same biophysical mechanism with the second-order conditioning. It enables a hardware-implemented second-order associative memory circuit to be feasible and simple. This work provides a novel path to realize the associative memory circuit with the second-order conditioning at hardware level.

SUBMITTER: Zhou G 

PROVIDER: S-EPMC9574501 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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Second-order associative memory circuit hardware implemented by the evolution from battery-like capacitance to resistive switching memory.

Zhou Guangdong G   Ji Xiaoyue X   Li Jie J   Zhou Feichi F   Dong Zhekang Z   Yan Bingtao B   Sun Bai B   Wang Wenhua W   Hu Xiaofang X   Song Qunliang Q   Wang Lidan L   Duan Shukai S  

iScience 20220928 10


Memristor-based Pavlov associative memory circuit presented today only realizes the simple condition reflex process. The secondary condition reflex endows the simple condition reflex process with more bionic, but it is only demonstrated in design and involves the large number of redundant circuits. A FeO<sub><i>x</i></sub>-based memristor exhibits an evolution process from battery-like capacitance (BLC) state to resistive switching (RS) memory as the <i>I-V</i> sweeping increase. The BLC is trig  ...[more]

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