Design of a Compact Superconducting RSFQ Register File

doi:10.1109/TCSI.2023.3298768

	Design of a Compact Superconducting RSFQ Register File
	Zhang, Kuozhong 1,2; Zhang, Zhimin 1; Tang, Guangming 1; Ye, Xiaochun 1
	2023-09-18
发表期刊	IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
ISSN	1549-8328
页码	8
摘要	In comparison to the widely-used CMOS circuits, superconducting Rapid Single Flux Quantum (RSFQ) circuits offer advantages such as fast operating frequency and low power consumption, making them a potential direction for development in the post-Moore era of digital circuits. However, designing RSFQ CPUs faces challenges, one of which is the need for a compact register file. This is because, under current RSFQ circuit process conditions, the memory module typically occupies a large chip area. This paper proposes a newly-designed Write-controllable Non-Destructive Read Out cell (WNDRO) that can limit the data writing pulse input to change the internal state of the cell. Based on the WNDRO, a compact RSFQ register file is designed that can realize random, non-destructive data reading. Additionally, a global write strategy is applied to omit the data write routing circuit and the reset control module, and the circuit design of the read and write control module is optimized. In comparison to general designs, the proposed compact register file design will save a large number of Josephson Junctions and effectively reduce the chip area. Additionally, this paper proposes several optimization logic designs for RSFQ CPU designers as a reference.
关键词	Registers Clocks Josephson junctions Power transmission lines Logic gates Decoding Program processors RSFQ register file superconducting digital circuit
DOI	10.1109/TCSI.2023.3298768
收录类别	SCI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:001071992300001
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/21160
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Zhang, Zhimin
作者单位	1.Chinese Acad Sci, Inst Comp Technol, State Key Lab Proc, Beijing 100864, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Kuozhong,Zhang, Zhimin,Tang, Guangming,et al. Design of a Compact Superconducting RSFQ Register File[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS,2023:8.
APA	Zhang, Kuozhong,Zhang, Zhimin,Tang, Guangming,&Ye, Xiaochun.(2023).Design of a Compact Superconducting RSFQ Register File.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS,8.
MLA	Zhang, Kuozhong,et al."Design of a Compact Superconducting RSFQ Register File".IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS (2023):8.