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随着电子技术的不断发展,集成电路的特征尺寸不断缩小,导致电路对宇宙高能粒子引发的单粒子翻转愈发敏感。提出了一种对单粒子翻转完全免疫的抗辐射加固锁存器。该锁存器利用具有过滤功能的C单元构建反馈回路,并在锁存器末端使用钟控C单元来阻塞传播至输出端的软错误。HSPICE仿真结果显示,在与TMR锁存器同等可靠性的情况下,该锁存器面积下降50%,延迟下降92%,功耗下降47%,功耗延迟积下降96%。
With the continuous development of electronic technology, the feature size of integrated circuits has been shrinking. As a result, the circuit is more and more sensitive to single-particle inversion triggered by high-energy particles in the universe. A radiation-hardened latch that is completely immune to single-particle flipping is proposed. The latch uses a C unit with filtering to build a feedback loop and uses a clocked C unit at the latch end to block soft errors propagating to the output. HSPICE simulation results show that with the same reliability as the TMR latch, the latch area is reduced by 50%, the delay is reduced by 92%, the power consumption is reduced by 47%, and the power delay product is decreased by 96%.