Title:
SIGNAL SHIELDING CIRCUIT AND SEMICONDUCTOR MEMORY
Document Type and Number:
WIPO Patent Application WO/2023/035411
Kind Code:
A1
Abstract:
Embodiments of the present disclosure provide a signal shielding circuit and a semiconductor memory. The signal shielding circuit comprises a receiving circuit, a delay control circuit, and a logic operation circuit. The receiving circuit is used for receiving a signal to be processed and a chip select signal, and outputting an initial processing signal and an initial chip select signal; the delay control circuit is used for delaying the initial chip select signal and performing a logic control operation on same to obtain a chip select shielding signal, and the pulse width of the chip select shielding signal is greater than or equal to two preset clock cycles; and the logic operation circuit is used for performing invalid shielding processing on the initial processing signal according to the chip select shielding signal to obtain a target signal.
Inventors:
LI SIMAN (CN)
Application Number:
PCT/CN2021/131852
Publication Date:
March 16, 2023
Filing Date:
November 19, 2021
Export Citation:
Assignee:
CHANGXIN MEMORY TECH INC (CN)
International Classes:
G11C11/407
Foreign References:
| US10403335B1 | 2019-09-03 | |||
| CN111223504A | 2020-06-02 | |||
| CN1384506A | 2002-12-11 | |||
| US10475488B1 | 2019-11-12 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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