Design of a Triple-Node Upset Tolerant Latch Based on Dual-output C-elements
(School of Computer Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China)
Abstract
With the development of CMOS technology driving the scaling down of transistor dimensions, radiation-induced Triple-Node Upset (TNU) in CMOS circuits have become a critical issue threatening the reliability of memory devices. To mitigate the impact of soft errors on integrated circuits, this paper proposes a low-overhead latch design capable of tolerating Triple-Node Upsets (LCDOCTL). The LCDOCTL latch mainly consists of a storage module and an interception module, and achieves effective TNU tolerance by utilizing inter-cell data feedback. HSPICE simulation results show that, in comparison with existing TNU-tolerant latch designs, the proposed LCDOCTL latch achieves an average saving of 5.1% in area, 70.31% in propagation delay, 44.12% in power consumption and 84.66% in Power-Delay Product (PDP).
Keywords
radiation; soft error; latch; TNU; tolerance
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About the authors
Tang Ye (2001-), male, Han ethnicity, from Yancheng, Jiangsu, is currently pursuing a master's degree in fault-tolerant design of latches.