The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2025
Filed:
Jul. 27, 2023
Yangtze Memory Technologies Co., Ltd., Wuhan, CN;
Huiyuan Yue, Wuhan, CN;
Shiyang Yang, Wuhan, CN;
YANGTZE MEMORY TECHNOLOGIES CO., LTD., Wuhan, CN;
Abstract
Implementations of the present disclosure disclose a circuit for ZQ calibration. The circuit may include a logic control circuit. The logic control circuit may include a calibration code generation circuit configured to generate an initial calibration code in response to a calibration command. The logic control circuit may include a mapping conversion circuit configured to control the calibration code generation circuit to convert the initial calibration code to a target calibration code of a target adjustment step size in response to a code adjustment signal. The circuit may further include a calibration circuit configured to calibrate interface impedance of a target semiconductor device based on the target calibration code.