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. 30, 2004
Filed:
Jun. 15, 2001
Drew G. Doblar, San Jose, CA (US);
Han Y. Ko, Milpitas, CA (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
A memory module comprising a printed circuit board having mounting locations for a plurality of memory chips. A line driver having a plurality of outputs for each input is used to drive address and control signals to the chips, with each set of outputs coupled to a subset of the chips. Memory access time is improved by limiting subset size and thereby limiting driver loading. Subsets may correlate to banks of memory chips. Access time is substantially the same for a module with a plurality of banks of memory chips as it is for a module with only one bank of chips. Computer memory may be efficiently exchanged by using only such memory modules, allowing higher clock speed since the range of memory access times is reduced and requiring no change to system memory configuration or settings. Memory modules having differing capacities can be easily interchanged in the system.