XNOR gate circuit, regulating method and XOR gate circuit

Abstract

The embodiments of the invention provide a XNOR gate circuit, a regulating method and an XOR gate circuit, and relates to the field of logic circuits. The XNOR gate circuit includes a first input module, a second input module, an output module and a time-delay module. An input end of the first input module is in electrical connection to a first signal source. A first output end of the first inputmodule and a first end of the time-delay module are in electrical connection. A second output end of the first input module and one end of the output module are in electrical connection. An input endof the second input module is in electrical connection to a second signal source. An output end of the second input module and a second end of the time-delay module are in electrical connection. A third end of the time-delay module and the other end of the output module are in electrical connection. The time-delay module is intended for when a first signal is faster than a second signal by T time,postponing the first signal for T time, such that the first signal that is postponed for T time is synchronous with the second signal so as to acquire an output signal from the other end of the output module. The XNOR gate circuit prevents the output signal from having blurr.

Description

technical field [0001] The present invention relates to the technical field of logic circuits, in particular to an exclusive OR gate circuit, an adjustment method and an exclusive OR gate circuit. Background technique [0002] XNOR gate (XNOR gate or equivalence gate), also known as XNOR gate, is the basic unit of digital logic circuit, with 2 input terminals and 1 output terminal. When one and only one of the two inputs is low (logic 0), the output is low. That is, when the input levels are the same, the output is high level (logic 1). At present, the NOR gate circuit has some shortcomings, such as the ti chip SN54LS266 XNOR gate circuit chip, that is, the output signal of the NOR gate chip will have glitches. Contents of the invention [0003] The object of the present invention is to provide an exclusive OR gate circuit, an adjustment method and an exclusive OR gate circuit to improve the above problems. In order to achieve the above object, the technical scheme that...

AI Technical Summary

Problems solved by technology

At present, the NOR gate circuit has some shortcomings, such as the ti chip SN54LS266 XNOR gate circuit chip, that is, the output signal of the NOR gate chip will have glitches

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