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IEICE TRANSACTIONS on Electronics

RSFQ 4-bit Bit-Slice Integer Multiplier

Guang-Ming TANG, Kazuyoshi TAKAGI, Naofumi TAKAGI

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Summary :

A rapid single-flux-quantum (RSFQ) 4-bit bit-slice multiplier is proposed. A new systolic-like multiplication algorithm suitable for RSFQ implementation is developed. The multiplier is designed using the cell library for AIST 10-kA/cm2 1.0-µm fabrication technology (ADP2). Concurrent flow clocking is used to design a fully pipelined RSFQ logic design. A 4n×4n-bit multiplier consists of 2n+17 stages. For verifying the algorithm and the logic design, a physical layout of the 8×8-bit multiplier has been designed with target operating frequency of 50GHz and simulated. It consists of 21 stages and 11,488 Josephson junctions. The simulation results show correct operation up to 62.5GHz.

Publication
IEICE TRANSACTIONS on Electronics Vol.E99-C No.6 pp.697-702
Publication Date
2016/06/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E99.C.697
Type of Manuscript
Special Section PAPER (Special Section on Cutting-Edge Technologies of Superconducting Electronics)
Category

Authors

Guang-Ming TANG
  Kyoto University
Kazuyoshi TAKAGI
  Kyoto University
Naofumi TAKAGI
  Kyoto University

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