Anti-nuclear-radiation hardened set-reset D-type flip-flop

Abstract

The invention provides an anti-nuclear-radiation hardened set-reset D-type flip-flop, which comprises a master flip-flop and a slave flip-flop, wherein the master flip-flop utilizes a time domain sampling latch structure; the slave flip-flop utilizes a DICE structure latch structure; a time domain sampling latch performs correct sampling on data, and the time domain sampling latch selects correct data as output data through an internal decision circuit when input data generates a transient error under a nuclear radiation environment; a DICE structure latch latches data and has an error correcting capability; and an output set-reset circuit performs output setting and resetting functions, and supports a normal transmission channel of the data. Under an environment with relatively stronger nuclear radiation, the D-type flip-flop provided by the invention has a relatively higher error tolerant capability to the input data, can correct the transient error of the data, has an asynchronous setting and resetting function, can receive low-level clock signals, reduces circuit power consumption, can improve a signal generation speed and improves signal transmission and reaction accuracy.

Description

technical field [0001] The invention relates to the field of flip-flops, in particular to a set-reset D-type flip-flop hardened against nuclear radiation. Background technique [0002] With the enhancement of my country's comprehensive national strength, the key technical equipment for nuclear accident rescue has become the top priority of the national strategic technical equipment reserve! Nuclear accident rescue equipment can be divided into two key levels technically: one is Anti-nuclear radiation chip technology and anti-nuclear radiation reinforcement technology for electronic information systems, and the second is intelligent unmanned equipment with anti-nuclear technology such as unmanned vehicles, robots, drones, and unmanned boats. [0003] At present, our country only adopts anti-radiation chip reinforcement technology in the field of aerospace satellites. Due to the influence of single event effects in outer space, long-term exposure will damage the basic unit gate...

AI Technical Summary

Problems solved by technology

[0003] At present, our country only adopts anti-radiation chip reinforcement technology in the field of aerospace satellites. Due to the influence of single event effects in outer space, long-term exposure will damage the basic unit gate circuit of the electronic system and the latch will not turn over, which will cause the entire electronic system to be damaged. System failure! However, in the fields of aviation, weapons, and especially nuclear engineering, the application of anti-nuclear chips in our country is still blank!

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