Title
A Power-Delay-Product Efficient And Seu-Tolerant Latch Design
Abstract
With the increasing high requirements for digital circuits in space application, devices with smaller feature size are put into use, which have more potential suffering from Single Event Upset (SEU) under certain radiation environment. In this paper, we propose a SEU-tolerant latch with low power-delay-product (PDP) that combines a SEU-tolerant cross-coupled structure with isolation operation of flipped state. Negative feedback paths are introduced to help recover the flipped state and can be cut off to speed up the write operation at transparent mode. Furthermore, isolation of flipped state is utilized to achieve better SEU-tolerance. The simulation results with 180 nm and 40 nm CMOS technology show that the proposed latch can achieve outstanding SEU-tolerance (Q(critical) > 10 fC) and a relatively low PDP of 0.0095 fsxJ for 40 nm CMOS technology.
Year
DOI
Venue
2017
10.1587/elex.14.20170972
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
latch, single event upset, power-delay-product
Power–delay product,Computer science,Electronic engineering,Single event upset
Journal
Volume
Issue
ISSN
14
23
1349-2543
Citations 
PageRank 
References 
0
0.34
6
Authors
5
Name
Order
Citations
PageRank
Pei Liu144.47
Tian Zhao224120.35
Feng Liang343.05
Ji-zhong Zhao494469.40
Peilin Jiang5249.29