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:
Jun. 02, 2009
Filed:
Jan. 31, 2005
Joseph J. Nahas, Austin, TX (US);
Thomas W. Andre, Austin, TX (US);
Chitra K. Subramanian, Austin, TX (US);
Joseph J. Nahas, Austin, TX (US);
Thomas W. Andre, Austin, TX (US);
Chitra K. Subramanian, Austin, TX (US);
Everspin Technologies, Inc., Chandler, AZ (US);
Abstract
A controller for a toggle memory that performs burst writes by reading a group of bits in the toggle memory and comparing each received data word of the burst with a portion of the group to determine which cells to toggle to enter the data of the burst write in the toggle memory. In one example the toggle memory includes magnetoresistive random access memory (MRAM) with cells using multiple free magnetic layers that toggle between states when subjected to a sequence of magnetic pulses along two directions. Because one read is performed for a group of data of the burst, the time needed to perform the burst write is reduced.