A 4 X 4 superconducting Batcher-Banyan switch

Hosoya, M.; Kominami, S.

doi:10.1109/77.659432

Cited by 2 publications

(1 citation statement)

References 14 publications

(7 reference statements)

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“…8 shows a conceptual comparison of an SFQ switch with a semiconductor switch. Historically, from the same point of view, superconductor switch circuits using a voltage-level logic family were proposed [37], [38]. However, voltage-level logic is slower than SFQ logic, so SFQ circuit implementation is currently dominant.…”

Section: B Switch For High-end Routermentioning

confidence: 99%

Superconducting digital electronics

et al. 2004

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Single-flux quantum logic (SFQ) circuits, in which a flux quantum is used as an information carrier, have the possibility for opening the door to a new digital system operated at over 100-GHz clock frequency at extremely low power dissipation. The SFQ logic system is a so-called pulse logic, which is completely different from the level logic for semiconductors like CMOS, so circuit design technologies for SFQ logic circuits have to be newly developed.Recently, much progress in basic technologies for designing SFQ circuits and operating circuits at high speeds has been made. With advances in these design tools, large-scale circuits including more than several thousand junctions can be easily operated with the clock frequency of more than several tens of gigahertz. High-end routers and high-end computers are possible applications of SFQ logic circuits because of their high throughput nature and the low power dissipation of SFQ logic.In this paper, recent advances of SFQ circuit design technologies and recent developments of switches for high-end routers and microprocessors for high-end computers that are considered possible applications for SFQ logic will be described.

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Section: B Switch For High-end Routermentioning

confidence: 99%

Superconducting digital electronics

et al. 2004

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Single flux quantum packet switch circuits for large-scale communication systems

Yorozu

Kameda

Hashimoto

et al. 2003

IEEE Trans. Appl. Supercond.

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Large-scale telecommunication systems in the larger nationwide network of the next decade will require routers having a packet switching throughput capacity of over several-tens Tbps. In such future high-end routers, the packet switch, which is the biggest bottleneck of the router, will need higher processing speeds than semiconductor devices.In this paper, we describe an SFQ packet switch architecture that is used in the internal speed-up Banyan network. According to the architecture we have designed and demonstrated a deeppipelined 2 2 packet switch logic circuit, which is the key element in a packet switch, by applying two technological advances regarding design methodology and packaging. This circuit is among the largest SFQ random logic circuits yet reported.

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A 4 X 4 superconducting Batcher-Banyan switch

Cited by 2 publications

References 14 publications

Superconducting digital electronics

Superconducting digital electronics

Single flux quantum packet switch circuits for large-scale communication systems

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