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:
Jul. 07, 1998
Filed:
Mar. 12, 1997
Dimitris C Pantelakis, Austin, TX (US);
William L Martino, Jr, Austin, TX (US);
Derrick Leach, Austin, TX (US);
Frank A Miller, Austin, TX (US);
Wai T Lau, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A memory (10) such as a current sensing static random access memory (SRAM) achieves fast write recovery through bit line loads and two additional mechanisms. First, an additional load (252) on shared data lines also becomes active to speed the write recovery process. Second, multiple columns (200, 202, 204) are connected to common data lines during write recovery so that a column written to during a write cycle may be again precharged in part by charge sharing using the charge stored in other columns. These two mechanisms allow fast write recovery with minimum column pitch and avoid the problems which would be encountered if the loads were placed on the write data line.