An input buffer circuit and memory

Abstract

The application discloses an input buffer circuit and a memory. The input buffer circuit of this application, by configuring the input high voltage threshold to be different from the input low voltage threshold, when the input signal is between the input high voltage threshold and the input low voltage threshold, the logic output signal does not perform state switching, thereby eliminating noise on the input signal interference. That is, the present application can filter out the noise in the input signal, avoid the abnormal state of the logic output signal corresponding to the input signal, and ensure the normal operation of the device.

Description

technical field [0001] The present application relates to the field of storage technologies, and in particular, to an input buffer circuit and a memory capable of filtering out noise. Background technique [0002] An input buffer is an indispensable basic block in an integrated circuit, and it can be configured to perform voltage detection for a threshold voltage in order to confirm whether the voltage of the input signal is higher or lower than the threshold voltage. An input buffer consisting of CMOS-based logic devices is typically configured to receive a high or low voltage signal from a peripheral and then provide a logic state corresponding to the high or low signal. When the voltage of the input signal is higher than the threshold voltage, the output logic level changes from low to high; when the voltage of the input signal is lower than the threshold voltage, the output logic level changes from high to low. [0003] In a serial peripheral interface (Serial Periphera...

AI Technical Summary

Problems solved by technology

That is, during the rising and falling processes of the clock input signal CLK, the clock conversion is performed one more time respectively, so that the output of the clock logic signal ICK is abnormal.

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