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Multiplexing circuit and multiplexing method for chip pin

A technology of multiplexing circuits and chip tubes, which is used in electrical digital data processing, instruments, etc., can solve the problems of chip pins cannot be multiplexed, pin utilization is low, and the same pin cannot receive different types of input signals. The effect of improving the utilization rate and reducing the manufacturing cost

Inactive Publication Date: 2012-12-19
SILERGY SEMICON TECH (HANGZHOU) CO LTD
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0010] In view of this, the present invention provides a chip pin multiplexing method and its implementation circuit to solve the problem that the chip pins cannot be multiplexed, and the same pin cannot be used to receive different types of input signals, thus causing the pins to be used Low rate of technical issues

Method used

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  • Multiplexing circuit and multiplexing method for chip pin
  • Multiplexing circuit and multiplexing method for chip pin
  • Multiplexing circuit and multiplexing method for chip pin

Examples

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Embodiment Construction

[0033] Several preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made on the spirit and scope of the present invention. In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0034] refer to figure 1 The principle structural block diagram of the chip pin multiplexing circuit shown in the first example, wherein 104 is a multiplexing pin, and the pin multiplexing circuit further includes a DC signal receiving sub-circuit 101 for receiving the DC signal in the external signal The AC signal receiving sub-circuit ...

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Abstract

The invention relates to a multiplexing circuit and a multiplexing method for a chip pin. The multiplexing circuit for the chip pin comprises a direct-current signal receiving sub circuit for receiving a direct-current signal in an external signal, an alternating-current signal receiving sub circuit for receiving an alternating-current signal in the external signal, a coupling circuit which is respectively connected with the direct-current signal receiving sub circuit and the alternating-current signal receiving sub circuit, so that the received direct-current signal and the alternating-current signal are coupled, and are transmitted to a multiplexing pin. According to the embodiment provided in the invention, the same chip pin not only can receive a direct-current type signal and but also can receive an alternating-current type signal, thereby improving an utilization rate of the chip pin and reducing setting of the chip pin.

Description

[0001] This application is a divisional application of the original patent application with the filing date of 2010.02.04, the application number of 201010105751.1, and the title of the invention is a chip pin multiplexing circuit and its multiplexing method. technical field [0002] The invention relates to a chip pin circuit, and more specifically relates to a chip pin multiplexing circuit and a multiplexing method thereof. Background technique [0003] With the rapid development of microelectronics and communication technology, the scale of chip integration is getting bigger and bigger, and the corresponding chip integration functions are becoming more and more abundant. Therefore, it is necessary to increase the lead-out pins of the chip to connect specific application functions. For example, the current design of many control chips must have various protection functions, such as under-voltage / over-voltage protection on the input side bus voltage, over-current protection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 赵晨
Owner SILERGY SEMICON TECH (HANGZHOU) CO LTD
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