IEICE Transactions on Electronics
Online ISSN : 1745-1353
Print ISSN : 0916-8524
Special Section on Leading-Edge Technology of Superconductor Large-Scale Integrated Circuits
Circuit Description and Design Flow of Superconducting SFQ Logic Circuits
Kazuyoshi TAKAGINobutaka KITONaofumi TAKAGI
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2014 Volume E97.C Issue 3 Pages 149-156

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Abstract

Superconducting Single-Flux-Quantum (SFQ) devices have been paid much attention as alternative devices for digital circuits, because of their high switching speed and low power consumption. For large-scale circuit design, the role of computer-aided design environment is significant. As the characteristics of the SFQ devices are different from conventional devices, a new design environment is required. In this paper, we propose a new timing-aware circuit description method which can be used for SFQ circuit design. Based on the description and the dedicated algorithms we have been developing for SFQ logic circuit design, we propose an integrated design flow for SFQ logic circuits. We have designed a circuit using our developed design tools along with the design flow and demonstrated the correct operation.

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© 2014 The Institute of Electronics, Information and Communication Engineers
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