TY - GEN
T1 - Design of Variable Bit-Width Arithmetic Unit Using Single Flux Quantum Device
AU - Ishikawa, Iori
AU - Nagaoka, Ikki
AU - Kashima, Ryota
AU - Ishida, Koki
AU - Fukumitsu, Kosuke
AU - Oka, Keitaro
AU - Tanaka, Masamitsu
AU - Kawakami, Satoshi
AU - Tanimoto, Teruo
AU - Ono, Takatsugu
AU - Fujimaki, Akira
AU - Inoue, Koji
N1 - Funding Information:
This work was supported by JST-Mirai Program Grant Number JPMJMI18E1, JSPS KAKENHI Grant Numbers JP19H01105, JP18H05211. The circuit was designed with the support of the University of Tokyo (formerly VDEC) in collaboration with Cadence Design Systems, Inc., and fabricated in the CRAVITY in AIST using the AIST-ADP2 process.
Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This paper presents the design of an ultra-high-speed, low-power arithmetic unit that supports variable bit-width operations with single flux quantum (SFQ) technology. Because of the high-speed nature of superconductor devices, we can achieve extremely high power-performance efficiency that cannot be achieved by state-of-the-art CMOS devices. To implement the complex function to support the variable bit-width feature, we introduce a novel circuit architecture to maintain the high-speed operation over 50GHz. Our prototype chip design successfully demonstrated 53.5GHz 1.59mW operations.
AB - This paper presents the design of an ultra-high-speed, low-power arithmetic unit that supports variable bit-width operations with single flux quantum (SFQ) technology. Because of the high-speed nature of superconductor devices, we can achieve extremely high power-performance efficiency that cannot be achieved by state-of-the-art CMOS devices. To implement the complex function to support the variable bit-width feature, we introduce a novel circuit architecture to maintain the high-speed operation over 50GHz. Our prototype chip design successfully demonstrated 53.5GHz 1.59mW operations.
UR - http://www.scopus.com/inward/record.url?scp=85142523868&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85142523868&partnerID=8YFLogxK
U2 - 10.1109/ISCAS48785.2022.9937317
DO - 10.1109/ISCAS48785.2022.9937317
M3 - Conference contribution
AN - SCOPUS:85142523868
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 3547
EP - 3551
BT - IEEE International Symposium on Circuits and Systems, ISCAS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Symposium on Circuits and Systems, ISCAS 2022
Y2 - 27 May 2022 through 1 June 2022
ER -