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. 14, 2026
Filed:
Aug. 20, 2024
Gigadevice Semiconductor Inc., Beijing, CN;
Dequan Hou, Beijing, CN;
Zhi Liu, Beijing, CN;
GIGADEVICE SEMICONDUCTOR INC., Beijing, CN;
Abstract
A GPIO circuit and a chip are provided. The GPIO circuit includes at least one output driver branch each including output driver transistor. A gate of the output driver transistor is coupled to a respective pre-driver circuit including a conventional pre-driver circuit, a pre-driver transistor and a slow pre-driver (SPD) circuit. An output of the conventional pre-driver circuit is coupled to the gate of the output driver transistor, and a gate of the pre-driver transistor is coupled to a slope control signal. A drain of the pre-driver transistor is coupled to one terminal of the conventional pre-driver circuit. The SPD circuit is coupled between a source and the drain of the pre-driver transistor. In order to output a signal, the SPD circuit is turned on, and the conventional pre-driver circuit is turned on under the control of the signal to be output.