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:
Sep. 03, 2002
Filed:
Apr. 11, 2000
Applicant:
Inventor:
John D. Heightley, Colorado Springs, CO (US);
Assignee:
Mosel Vitelic, Inc., Hsinchu, TW;
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
A read data latch circuit that provides a level shift between internal and external voltages that does not require added circuitry dedicated to equalizing or level shifting the data latch nodes. Data lines are provided having a higher capacitance than the capacitance of the data latch nodes. The data latch nodes are connected to the data lines through a switch. When the switch is open, an equalization charge is shared between the data lines and the latch nodes. The voltage for providing the equalization charge and data signals internal to the chip is lower than the data output signals provided to external circuitry by the data latch.