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. 07, 1999
Filed:
Jun. 19, 1997
Paul M-Bhor Chiang, Cupertino, CA (US);
Michael G Fung, Los Altos, CA (US);
Silicon Magic Corporation, Santa Clara, CA (US);
Abstract
A memory is modified so that read and write data are transferred on both rising and falling edges of a timing signal, thereby essentially doubling the data transfer rate from memory. In one embodiment, a dual-edge extended data out (DE.sup.2 DO) memory includes modified and improved circuits and operating methods, as compared to a standard extended data out (EDO) memory, so that read and write data are transferred on both rising and falling edges of a timing signal. In a described embodiment, DE.sup.2 DO dynamic RAM (DRAM) reads and writes data on the rising and falling edges of a column address strobe (CAS) timing signal. By transferring data on both the rising and falling edges of the timing signal, the data transfer rate to and from the memory is effectively doubled.