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:
Aug. 07, 2001
Filed:
Feb. 29, 2000
Quang C. Le, Gilbert, AZ (US);
Charles H. Matsumoto, Phoenix, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A level shifter for use in an integrated circuit that translates a binary input signal having a low voltage level to a binary output signal having a different voltage level. The level shifter (,) includes an input stage (,) that receives the input signal and provides control signals to a low state voltage translation circuit (,) and a high state voltage translation circuit (,). The low state voltage translation circuit (,) controls the level shifter (,) when the input signal is low and provides a bias signal to a bipolar device (Q,) adapted to pull the external output signal low. The high state voltage translation circuit (,) controls the level shifter (,) when the input signal is high and includes a voltage reducing circuit (,) operating as a current mirror with a pull-up PMOS transistor (P,) to couple an internal high voltage power supply to the output node (Vout).