Abstract
A high-performance and low power consumption triple-node upset self-recoverable latch (HTNURL) is proposed. It can effectively tolerate single-node upset (SNU), double-node upset (DNU), and triple-node upset (TNU). This latch uses the C-element to construct a feedback loop, which reduces the delay and power consumption by fast path and clock gating techniques. Compared with the TNU-recoverable latches, HTNURL has a lower delay, reduced power consumption, and full self-recoverability. The delay, power consumption, area overhead, and area-power-delay product (APDP) of the HTNURL is reduced by 33.87%, 63.34%, 21.13%, and 81.71% on average.
Highlights
With the semiconductor technology scaling down continuously, higher integration and lower power integrated circuits (ICs) have been successfully developed
Compared with the typical triple-node upset (TNU)-recoverable latches, the HTNURL proposed in this paper decreases the delay by 69.54%, the power consumption by 30.90%, the area overhead by 3.60%, and the area-power-delay product (APDP) by 88.60%
Direct ionization is caused by the incident particle, while indirect ionization is caused by secondary particles created by nuclear reactions between the particle and the device
Summary
With the semiconductor technology scaling down continuously, higher integration and lower power integrated circuits (ICs) have been successfully developed. In the high-density ICs, owing to charge sharing, high-energy particle strike may alter the logic values of double/triple nodes at the same time, resulting in a double-node upset (DNU) or even a triple-node upset (TNU) [4]. Because of latches’ problems mentioned above, we designed a high-performance and low-power latch which is TNU self-recoverable. This latch comprises four series of C-element modules, each consisting of four two-input C-elements. Compared with the typical TNU-recoverable latches, the HTNURL proposed in this paper decreases the delay by 69.54%, the power consumption by 30.90%, the area overhead by 3.60%, and the APDP by 88.60%.
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