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A High-Performance and Low-Cost Single-Event Multiple-Node-Upsets Resilient Latch Design

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In this article, a high-performance and low-cost single-event multiple-node-upsets resilient (HLMR) latch is proposed in 55-nm CMOS technology. By using eight normal two-input Muller-C-elements (MCEs) and eight clock-gating (CG)-based two-input… Click to show full abstract

In this article, a high-performance and low-cost single-event multiple-node-upsets resilient (HLMR) latch is proposed in 55-nm CMOS technology. By using eight normal two-input Muller-C-elements (MCEs) and eight clock-gating (CG)-based two-input MCEs, a feedback loop storage module with 16 storage nodes is constructed, which makes the latch completely triple-node-upsets (TNUs) resilient. Meanwhile, through the special layout technique which guarantees the worst quadruple-node pairs as physically apart as possible, the proposed latch is completely quadruple-node-upsets (QNUs) tolerant and almost completely QNU resilient. Simulation results have validated the robustness and low cost of the proposed latch due to the use of high-speed transmission gates (TGs), CG technology, and fewer transistors. Overhead comparisons indicate that our design saves 383.53% area-power-delay product (APDP) on average and has a lower sensitivity on process, voltage and temperature (PVT) compared with other considered up-to-date multiple-node-upsets (MNUs) tolerant latches, thus providing high reliability for safety and low-cost critical applications, especially in harsh radiative environments.

Keywords: node upsets; multiple node; low cost; latch; high performance

Journal Title: IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Year Published: 2022

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