Chip interface circuit

A technology of interface circuit and chip, which is applied in the direction of circuit device, emergency protection circuit device, logic circuit connection/interface arrangement, etc., can solve problems such as failure to eliminate overvoltage in time, reduced service life of chip, and low chip protection performance. Achieve the effects of increasing service life, improving protection performance, reducing high-frequency noise and spike interference

Inactive Publication Date: 2018-01-26
SHENZHEN ATTE INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 an

Method used

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Embodiment Construction

[0037] In order to facilitate a better understanding of the present invention, the present invention will be further explained below in conjunction with the accompanying drawings of related embodiments. Embodiments of the invention are shown in the drawings, but the invention is not limited to the preferred embodiments described above. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough.

[0038] With the use of various smart devices, the chip is used more and more frequently. After the chip is electrically connected with other electronic components through the circuit, it can perform different functions by receiving and sending signals, but in the existing During the use of the chip, the chip interface circuit has low protection performance for the chip and cannot protect the chip well. For example, when surges, lightning strikes, overvoltages, etc. occur, it is often easy to cause chip damage, thereby reducing The service lif...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): H02H9/04H03K19/0175
Inventor 王棋
Owner SHENZHEN ATTE INTELLIGENT TECH CO LTD
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