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Modeling and Characterization of Metastability in Single Flux Quantum (SFQ) Synchronizers | IEEE Conference Publication | IEEE Xplore

Modeling and Characterization of Metastability in Single Flux Quantum (SFQ) Synchronizers


Abstract:

Despite the promises of low-power and high-frequency of single-flux quantum (SFQ) technology, scaling these circuits remains a serious challenge that motivates the suppor...Show More

Abstract:

Despite the promises of low-power and high-frequency of single-flux quantum (SFQ) technology, scaling these circuits remains a serious challenge that motivates the support of multiple SFQ clock domains. Towards this end, this paper analyzes the impact of setup time violations and metastability in SFQ circuits comparing the derived analytical models to their CMOS counterparts. It then extends this model to estimate the Mean Time Between Failure (MTBF) of flip-flop-based synchronizers and curve fits this model to simulations in the state-of-the-art SFQ5ee process. Interestingly, we find a two-flop SFQ synchronizer has an estimated MTBF of ∼106 years.
Date of Conference: 12-14 October 2020
Date Added to IEEE Xplore: 28 September 2020
Print ISBN:978-1-7281-3320-1
Print ISSN: 2158-1525
Conference Location: Seville, Spain

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