Novel Power Reduction Technique for ReRAM with Automatic Avoidance Circuit for Wasteful Overwrite

Low-power operations can be great advantageous for ReRAM devices. However, wasteful overwriting such as the SET operation to low-resistance state (LRS) device and the RESET operation to high-resistance state (HRS) device causes not only an increase in power but also the degradation of the write cycl...

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Bibliographic Details
Main Authors: Takaya Handa, Yuhei Yoshimoto, Kazuya Nakayama, Akio Kitagawa
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Active and Passive Electronic Components
Online Access:http://dx.doi.org/10.1155/2012/181395
Description
Summary:Low-power operations can be great advantageous for ReRAM devices. However, wasteful overwriting such as the SET operation to low-resistance state (LRS) device and the RESET operation to high-resistance state (HRS) device causes not only an increase in power but also the degradation of the write cycles due to repeatedly rewriting. Thus, in this paper, we proposed a novel automatic avoidance circuit for dealing with wasteful overwriting that uses a sense amplifier and estimated the energy consumption reduction rate by conducting a circuit simulation. As a result, this circuit helped to reliably avoid the wasteful overwriting operation to reduce about 99% and 97% of wasteful energy using VSRC and CSRC, respectively.
ISSN:0882-7516
1563-5031