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:
Mar. 24, 1998
Filed:
Sep. 26, 1996
James A Komarek, Newport Beach, CA (US);
Clarence W Padgett, Westminster, CA (US);
Creative Integrated Systems, Inc., Santa Ana, CA (US);
Abstract
An improved precharge timing control is provided by turning off the first one of a series of precharge clocks PC0 by means of discharging a single dummy word line. The dummy word line is comprised of a plurality of dummy word line segments wherein each of the segments are charged in parallel, but discharged in series. The discharge time required of the plurality of word line segments is sufficient to allow discharge of an end of a selected word line in the read only memory to ground. Improved timing with good performance is achieved by turning off the earliest precharge clock PC0 among a series of precharge clocks PC0 and PC1, for example, so that an improved precharge time for the ROM core for a fast process parameter is realized.