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:
Oct. 08, 2013

Filed:

Aug. 18, 2011
Applicant:

Daniel C. Chow, Austin, TX (US);

Inventor:

Daniel C. Chow, Austin, TX (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A sense amplifier latch may be provided to controllably latch the output of a sense amplifier. The latch may open in response to assertion of a latch enable signal to receive data, and close in response to deassertion of the latch enable signal to capture and store the received data. Additionally, a multiplexer may be provided to select from among multiple sources of test data, such as scan data and bypass data. The multiplexer may produce a test data input to the sense amplifier latch that encodes a data value and a control value that causes the data value to be selected. Depending on the state of the test data input, the sense amplifier latch may output either a value received from the sense amplifier or a value encoded in the test data input.


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