The electronic component base of failure resilience digital circuits

The article presents the research of self-timed and synchronous circuits in terms of resilience to soft errors which can cause disruptions in the control system's operation of complex technical device. The use of a fail-resilient self-timed code is proposed, which considers the antispacer state as the second spacer state. This approach increases the self-timed circuit's failure resilience level. In the first approximation, quantitative estimates show that the self-timed pipeline has a better failure resilience than the synchronous counterparts by 2.0–4.7 times. The use of modified C-element to implement the pipeline register bit increases this advantage to 2.2–5.4 times. Due to this, self-timed circuits are the preferred basis of failure resilient control systems implementation for complex technical equipment.