Chip interface circuit

Abstract

The invention provides a chip interface circuit. The chip interface circuit comprises a signal transmission-reception module, a recognition module, a voltage protection module, a surge protection module and a switch module, the signal transmission-reception module is electrically connected with a data transmission-reception pin of a chip, the recognition module is electrically connected with a data transmission pin of the chip, one terminal of the voltage protection module is electrically connected with an output terminal of a power supply, the other terminal of the voltage protection module is electrically connected with a voltage input pin of the chip, the surge protection module is electrically connected with the recognition module, and the switch module is electrically connected with the surge protection module. According to the chip interface circuit, through the design of the recognition module, the recognized capability of the data transmission pin is enhanced, the generated pull-up level and the pull-down level enable a circuit structure of the chip interface circuit to be more stable, the protection performance of the chip interface circuit is enhanced, and through the design of the voltage protection module, the damage to the chip due to large fluctuation of the voltage sent by the power supply or over-high input voltage is prevented so that the protection performanceof the chip interface circuit is enhanced.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a chip interface circuit. Background technique [0002] With the development of the times and the continuous improvement of people's living standards, chips are used more and more frequently. Chips refer to silicon chips containing integrated circuits. They are small in size and are often part of computers or other electronic devices. Chips are also called For microcircuits, microchips and integrated circuits, the types of chips are very wide, and their functions are also various, such as those responsible for power supply voltage output control, those responsible for audio and video processing, and those responsible for complex arithmetic processing and other functions. , during the use of the chip, it is necessary to electrically connect the chip with other electronic devices or equipment through the chip interface circuit, so as to obtain the effect of performing v...

AI Technical Summary

Problems solved by technology

[0003] The existing chip interface circuit has low protection performance for the chip during use, and the chip is often damaged due to large voltage fluctuations between the power supply and the chip, which in turn leads to a reduction in the service life of the chip. When a surge occurs, the overvoltage cannot be eliminated in time, which may easily lead to damage to the chip

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