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Efuse controller, chip and efuse read-write system

A controller and control unit technology, applied in the fields of efuse controllers, chips and efuse read-write systems, can solve problems such as undiscovered, and achieve the effects of low price, simple circuit logic structure, and easy wiring implementation.

Pending Publication Date: 2021-03-02
SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, no similar technical solutions have been found

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  • Efuse controller, chip and efuse read-write system
  • Efuse controller, chip and efuse read-write system
  • Efuse controller, chip and efuse read-write system

Examples

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Embodiment Construction

[0064] The core idea of ​​the present invention is to provide an efuse controller, a chip and an efuse read-write system, which overcomes the disadvantage that the efuse module can only read and write at a fixed frequency sequence, so that the efuse module can read and write data in a wide frequency range Write.

[0065] In order to realize the above idea, the present invention provides an efuse controller, including an efuse control module, the efuse control module includes a pulse interval control unit, a pulse width control unit and a pulse output control unit; the input terminal of the pulse interval control unit It is configured to receive a preset interval duration, and its output terminal is connected to one of the input terminals of the pulse output control unit, and the pulse interval control unit is configured to control the output of the pulse output control unit according to the preset interval duration The pulse interval of the control pulse; the input terminal of...

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Abstract

The invention provides an efuse controller, a chip and an efuse read-write system. An efuse control module of the efuse controller comprises a pulse interval control unit, a pulse width control unit and a pulse output control unit. The input end of the pulse interval control unit is configured to receive a preset interval duration, and the pulse interval control unit is configured to control the pulse interval of the control pulse output by the pulse output control unit according to the preset interval duration; the input end of the pulse width control unit is configured to receive a preset pulse width, and the pulse width control unit is configured to control the pulse width of the control pulse output by the pulse output control unit according to the preset pulse width; and the output end of the pulse output control unit is connected with the efuse module and is configured to output the control pulse to the efuse module. According to the efuse controller, the chip and the efuse read-write system provided by the invention, the efuse module can be read and written in a wide frequency range, so that the convenience of reading and writing the efuse module is improved.

Description

technical field [0001] The invention relates to the technical field of semiconductor chips, in particular to an efuse controller, a chip and an efuse read-write system. Background technique [0002] The efuse (electrically programmable fuse) module is a one-time programmable memory (One Time Programmable, OTP), which realizes the function of writing data on the chip by blowing the fuse. The efuse module is a non-volatile memory, and the data in it cannot be modified once written. Therefore, it is usually widely used in chip manufacturing as an IP (Intellectual Property, intellectual property) provided by chip manufacturers to store specific data information. For example, it is usually used to store some repair information of ram (random access memory) inside the chip to improve the yield rate of the chip; or to store some very important and sensitive information, such as keys, MAC addresses, and other specific setting information. [0003] In the prior art, most efuse modu...

Claims

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Application Information

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IPC IPC(8): G06F13/16G11C17/18
CPCG06F13/1668G11C17/18
Inventor 叶崇光李林周杰雷陈西昌
Owner SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT
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