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. 11, 2001
Filed:
Mar. 02, 2000
Applicant:
Inventor:
Yong K. Kim, Santa Clara, CA (US);
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 1/9094 ; H03K 1/90175 ;
U.S. Cl.
CPC ...
H03K 1/9094 ; H03K 1/90175 ;
Abstract
An improved level shifter circuit is provided which is designed for use with an extremely low power supply voltage. The level shifter circuit includes a fourth NMOS transistor, a third PMOS transistor, and a fifth NMOS transistor connected in series and interconnected between the high voltage and the output terminal. As a result, the high voltage will still be passed to the output terminal when the high voltage is lowered to be equal to the low power supply voltage.