CMOS symmetrical output D flip-latch with self-correction function

Abstract

The invention relates to a symmetry output register, which is characterized in that the discharge or charge branch with changed state has only two transistors; since the CLK and D signals have one in stable state when another one turnovers, therefore, it has only one transistor in control state when state changes, to accelerate the turnover speed, with better symmetry. Since it has abundant circuit, when two circuits in hold states, it can automatically recover the soft error caused by radios.

Description

technical field [0001] The technical field of direct application of "CMOS symmetrical output D latch with self-correction function" is high-performance integrated circuit design. The proposed circuit is a kind of CMOS symmetrical output latch unit with self-correction function for errors caused by noise, cosmic rays, etc. Background technique [0002] As the CMOS integrated circuit manufacturing process gradually enters the nanoscale field, the scale and complexity of integrated circuits are increasing day by day. Soft errors caused by cosmic ray particle bombardment pose a certain threat to the reliability of integrated circuits. Due to the progress of the process, the node capacitance in the CMOS circuit is reduced, so that the total charge required to make a node flip is reduced, which means that the low-energy cosmic ray particles that would not have an impact in the past will now affect circuit poses enough of a threat. In addition, due to the decrease of the power su...

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Problems solved by technology

However, this structure is only for the SR latch composed of NAND, and does not provide the circuit structure of the SR latch composed of NOR, let alone the circuit structure of the CLK-D latch.

And more importantly, it does not have the ability to self-correct soft errors

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