Presentation 2019-04-19
Demonstration of an SFQ/CMOS hybrid memory system using a one-instruction-set SFQ microprocessor
Yuki Hironaka, Yuki Yamanashi, Nobuyuki Yoshikawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) SFQ/CMOS hybrid system, which is a hybridized system of SFQ circuits and CMOS memories, has been proposed as a large-scale memory solution for single-flux-quantum (SFQ) circuits. In this study, we designed and tested an SFQ microprocessor with an SFQ/CMOS hybrid memory, which we had implemented so far, for the demonstration of the SFQ/CMOS hybrid system. We adopted a one-instruction-set-computer architecture, SUBNEG. The system was designed and implemented with superconducting interface circuits by using the Josephson integrated circuit process, AIST-ADP2. A 64-kb SFQ/CMOS hybrid memory was combined with the SFQ microprocessor, where SFQ processor can access to a 16×4-bit memory space. In the measurement, the correct operation between the SFQ processor and the CMOS memory was obtained, and a simple integer sorting program was demonstrated.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) SFQ/CMOS hybrid system / Josephson/CMOS hybrid memory / SFQ circuits / SRAM / one-instruction-set computer
Paper # SCE2019-2
Date of Issue 2019-04-12 (SCE)

Conference Information
Committee SCE
Conference Date 2019/4/19(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Hiroaki Myoren(Saitama Univ.)
Vice Chair
Secretary (Nagoya Univ.)
Assistant Hiroyuki Akaike(Daido Univ.)

Paper Information
Registration To Technical Committee on Superconductive Electronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Demonstration of an SFQ/CMOS hybrid memory system using a one-instruction-set SFQ microprocessor
Sub Title (in English)
Keyword(1) SFQ/CMOS hybrid system
Keyword(2) Josephson/CMOS hybrid memory
Keyword(3) SFQ circuits
Keyword(4) SRAM
Keyword(5) one-instruction-set computer
1st Author's Name Yuki Hironaka
1st Author's Affiliation Yokohama National University(Yokohama National Univ.)
2nd Author's Name Yuki Yamanashi
2nd Author's Affiliation Yokohama National University(Yokohama National Univ.)
3rd Author's Name Nobuyuki Yoshikawa
3rd Author's Affiliation Yokohama National University(Yokohama National Univ.)
Date 2019-04-19
Paper # SCE2019-2
Volume (vol) vol.119
Number (no) SCE-10
Page pp.pp.7-11(SCE),
#Pages 5
Date of Issue 2019-04-12 (SCE)