Anti-charge sharing D latch for high frequency circuit application

Abstract

The invention discloses an anti-charge sharing D latch for high-frequency circuit application, which belongs to the field of anti-radiation reinforcement in integrated circuit reliability. The problems of large hardware overhead, multiple sensitive nodes, high power consumption, long transmission time and long recovery time of an anti-charge sharing D latch applied to a high-frequency circuit aresolved. The gate of a transistor TN1 is connected to a node S8, the gate of a transistor TN2 is connected to a node S7, the gate of a transistor TN9 is connected to a node S4, and the gate of a transistor TN10 is connected to a node S3. Due to the above connection mode, the recovery time after overturning can be reduced, the transistors TP3 and TN1, TP4 and TN2, TP9 and TN9, and TP10 and TN10 areensured not to be influenced at the same time as much as possible, so that the overturned node can be recovered quickly, and the system can recover to a normal working state in a very short time. Therefore, the anti-charge sharing D latch for high-frequency circuit application is mainly applied to high-frequency circuits.

Description

technical field [0001] The invention belongs to the field of anti-radiation reinforcement in integrated circuit reliability. Background technique [0002] In aerospace and high-radiation applications on the ground, the D latch needs to be reinforced against charge sharing, mainly to prevent the stored data from being changed by external radiation particles. The reason for charge sharing is that in large-scale integrated circuit technology, the device nodes are far away, so the radiation charge collected at one node will not be shared with other nodes; however, with the development of integrated circuit technology, the device's The size will become smaller and smaller, causing the distance between the two nodes to become closer and closer, so that the radiated charge collected by one node can be shared with the second node, causing the two nodes to flip at the same time. [0003] The D latch in the integrated circuit plays a very important role, and the information it latche...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of large hardware overhead, many sensitive nodes, high power consumption, long transmission time and long recovery time in the anti-charge sharing D latch applied in high-frequency circuits. Anti-charge-sharing D-latch for high-frequency circuit applications

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