論文

査読有り
1999年6月

New logic circuits based on SFQ signals

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
  • F Furuta
  • ,
  • Y Suzuki
  • ,
  • E Oya
  • ,
  • S Matsumoto
  • ,
  • H Akaike
  • ,
  • A Fujimaki
  • ,
  • H Hayakawa
  • ,
  • Y Takai

9
2
開始ページ
3553
終了ページ
3556
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1109/77.783797
出版者・発行元
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

We propose new logic circuits based on Single Flux Quantum logic with Resettable Latch (SFQ-RL). This new logic enables us to initialize the whole circuit and realize an inverter easily. This initialization function is needed for general state machines, in addition, suppress the failed operation caused by a trapped flux in storage loops. SFQ-RL logic consists of three primitives of gates, "Latch (L)-gate", "Copy(C)-gate" and "Or (O)-gate". L-gate is a kind of flip-flop gate. The difference from a conventional RSFQ latch, "RS-FF" is that L-gate can be reset without emitting an output pulse using "Initialize" pulse. Our numerical simulation shows that the bias margin of L-gate is +/-48%. C-gate and O-gate correspond to "Splitter" and "Confluence Buffer" in RSFQ logic, respectively. Every logic function can be realized by only the three primitives. We confirmed the operations, "AND" and "OR" with reasonable margins and speeds by the numerical calculation. We have experimentally demonstrated the logic function such as OR based on SFQ-RL logic. We confirmed the normal operation of the gate with the bias margin of +/-25.9%.

Web of Science ® 被引用回数 : 8

リンク情報
DOI
https://doi.org/10.1109/77.783797
CiNii Articles
http://ci.nii.ac.jp/naid/30020127654
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000081964500177&DestApp=WOS_CPL

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