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A power-on reset circuit with stable power-on reset voltage

A voltage stabilization and electrical reset technology, applied in static memory, read-only memory, instruments, etc., can solve the problems of inability to achieve power-on reset function and reset voltage effect, and achieve stable and normal operation, accurate power-on reset, and reduced effect of influence

Active Publication Date: 2020-07-28
XTX TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reset voltage detection of the traditional power-on reset circuit is greatly affected by temperature and process angle, and may not be able to achieve the normal power-on reset function under certain circumstances

Method used

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  • A power-on reset circuit with stable power-on reset voltage
  • A power-on reset circuit with stable power-on reset voltage

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Embodiment 1

[0022] An embodiment of the present invention provides a power-on reset circuit with a stable power-on reset voltage, which is suitable for providing a stable and reliable power-on reset voltage for a non-volatile memory chip to ensure stable and normal operation of the chip. See figure 2 , the power-on reset circuit may include:

[0023] The power-on reset module 100 is used for providing the power-on reset voltage required by the power-on reset for the non-volatile memory chip.

[0024] The negative feedback module 200 is connected to the power-on reset module 100, and is used to send a negative feedback signal to the power-on reset module according to the temperature and process angle, and the negative feedback signal is used to control the power-on reset voltage output by the power-on reset module within a preset range Inside.

[0025] It should be noted that the traditional power-on reset circuit does not have a negative feedback module, and the power-on reset voltage p...

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PUM

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Abstract

The invention discloses a power-on reset circuit with a stable power-on reset voltage, and the circuit comprises a power-on reset module which is used for providing the power-on reset voltage needed by the power-on reset for a nonvolatile memory chip; and a negative feedback module which is connected with the power-on reset module and used for sending a negative feedback signal to the power-on reset module according to the temperature and the process angle, and the negative feedback signal is used for controlling the power-on reset voltage output by the power-on reset module to be within a preset range. According to the invention, the negative feedback module is added in the power-on reset circuit; the negative feedback module sends a negative feedback signal to the power-on reset circuitaccording to the temperature and the process angle; the negative feedback signal is used for controlling the power-on reset voltage output by the power-on reset circuit to be within a preset range; therefore, the influence of the temperature and the process angle on the power-on reset voltage can be effectively reduced, accurate power-on reset voltage detection is realized, a stable power-on resetsignal is generated, an accurate power-on reset function is realized, and stable and normal operation of the chip is ensured.

Description

technical field [0001] The invention relates to the technical field of circuit reset, in particular to a power-on reset circuit with stable power-on reset voltage. Background technique [0002] Non-volatile memory chips will not lose data after power failure. Common non-volatile memories include read-only memory (ROM), electrically erasable memory (EEPROM), NOR flash memory (NOR FLASH) and NAND Type flash memory (NAND FLASH). [0003] For any other chip such as a non-volatile memory chip, in order to ensure the correct operation and stability of the chip, it is necessary to perform a power-on reset on each circuit module in the chip before the chip starts to work. The reset voltage detection of the traditional power-on reset circuit is greatly affected by temperature and process angle, and may fail to achieve a normal power-on reset function under certain circumstances. Contents of the invention [0004] In order to solve the problems in the prior art, an embodiment of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C7/20G11C16/30
CPCG11C7/20G11C16/30
Inventor 温靖康龙冬庆
Owner XTX TECH INC