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:
Dec. 05, 2017
Filed:
Feb. 14, 2017
Winbond Electronics Corp., Taichung, TW;
Hidemitsu Kojima, Taichung, TW;
Winbond Electronics Corp., Taichung, TW;
Abstract
A semiconductor device and an output circuit thereof for accelerating rising of a pull-up transistor are provided. The output circuit of the invention includes an external terminal (), an output buffer () and a pre-buffer circuit (). The external terminal () can output output data to an external part. The output buffer () is connected to the external terminal () and includes a pull-up transistor (Qp) of P type and a pull-down transistor (Qn) of N type. The pre-buffer circuit () outputs a pull-up signal (PU) and a pull-down signal (PD) corresponding to the output data to the output buffer (). The pre-buffer circuit () also includes a circuit (). The circuit () negatively boosts the pull-up signal (PU) when the pull-up signal (PU) is changed from a high level into a low level.