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.

Date of Patent:
Aug. 02, 2022

Filed:

Jan. 27, 2021
Applicant:

Nxp Usa, Inc., Austin, TX (US);

Inventors:

Michael A. Sadd, Austin, TX (US);

Jon Scott Choy, Austin, TX (US);

Assignee:

NXP USA, INC., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/02 (2006.01); G11C 13/00 (2006.01);
U.S. Cl.
CPC ...
G11C 13/004 (2013.01); G11C 2013/0045 (2013.01); G11C 2013/0054 (2013.01); G11C 2213/79 (2013.01);
Abstract

A memory includes a pair of sense amplifiers where the pair of sense amplifiers perform a multiphase memory operation to read data from two memory cells. Each sense amplifier includes two current paths. During a first phase of the memory read operation, one of the two sense amplifiers provides current through both a first memory cell and a first reference cell and the other sense amplifier of the two provides current through both a second memory cell and a second reference cell. The reference cells each have different resistance values. During a second phase of the memory read operation, one of the sense amplifiers provides current through both of the first memory cell and the second reference cell and the second sense amplifier provides current through the second memory cell and the first reference cell.


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