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Feedback Redundancy: A Power Efficient SEU-Tolerant Latch Design for Deep Sub-Micron Technologies
Edinburgh, UK June 25-June 28
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/DSN.2007.5137th Annual IEEE/IFIP International C ...
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M. Fazeli, Sharif University of Technology, Iran
A. Patooghy, Sharif University of Technology, Iran
S.G. Miremadi, Sharif University of Technology, Iran
A. Ejlali, Sharif University of Technology, Iran
The continuous decrease in CMOS technology feature size increases the susceptibility of such circuits to single event upsets (SEU) caused by the impact of particle strikes on system flip flops. This paper presents a novel SEU-tolerant latch where redundant feedback lines are used to mask the effects of SEUs. The power dissipation, area, reliability, and propagation delay of the presented SEU-tolerant latch are analyzed by SPICE simulations. The results show that this latch consumes about 50% less power and occupies 42% less area than a TMR-latch. However, the reliability and the propagation delay of the proposed latch are still the same as the TMR-latch.the reliability of the proposed latch is also compared with other SEU-tolerant latches.
Citation:
M. Fazeli, A. Patooghy, S.G. Miremadi, A. Ejlali, "Feedback Redundancy: A Power Efficient SEU-Tolerant Latch Design for Deep Sub-Micron Technologies," dsn, pp.276-285, 37th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN'07), 2007
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