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:
Apr. 04, 2023
Filed:
Apr. 26, 2021
Jiangsu Advanced Memory Technology Co., Ltd., Jiangsu, CN;
Siloam Holdings Co., Ltd., Hsinchu County, TW;
Jui-Jen Wu, Hsinchu County, TW;
Toshio Sunaga, Hsinchu County, TW;
Cho-Fan Chen, Hsinchu County, TW;
JIANGSU ADVANCED MEMORY TECHNOLOGY CO., LTD., Jiangsu, CN;
SILOAM HOLDINGS CO., LTD., Hsinchu, TW;
Abstract
A calibration device which is configured for calibrating a memory is provided. The calibration device includes an input terminal, a first pull-up circuit, and a first comparator. The input terminal is coupled to an external resistor. The first pull-up circuit is coupled to the input terminal, and configured to receive a power supply voltage. The first pull-up circuit includes a plurality of first pull-up units. The first pull-up units are coupled to each other in parallel. The first comparator is coupled to the input terminal. The first comparator is configured to receive a proportion voltage which is corresponding to the power supply voltage, and output a first control signal to the first pull-up units, such that a resistance of each of the first pull-up units is equal to a resistance of the external resistor.