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:
Oct. 07, 2025
Filed:
Aug. 11, 2023
Changxin Memory Technologies, Inc., Hefei, CN;
Kai Tian, Hefei, CN;
CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei, CN;
Abstract
A memory device includes: two calibration resistor interfaces connected to the same ZQ calibration resistor; and a first master chip, first slave chips, a second master chip, and second slave chips, which are commonly connected to the ZQ calibration resistor; in a command mode, a first signal receiver is used to receive a ZQ calibration command, a second signal receiver is used to receive and delay the ZQ calibration command, each of the first slave chips and the second slave chips starts to calibrate based on a respective ZQ flag signal, and in response to a respective ZQ calibration is completed, each of the first slave chips and the second slave chips sends a respective ZQ flag signal through second transmission terminals.