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:
Nov. 02, 2021

Filed:

Jun. 19, 2020
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Vivekanandan Venugopal, San Jose, CA (US);

Ajay Bhatia, Saratoga, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 7/08 (2006.01); H03K 19/0185 (2006.01); G11C 7/22 (2006.01); G11C 7/10 (2006.01); H03K 3/037 (2006.01);
U.S. Cl.
CPC ...
G11C 7/08 (2013.01); G11C 7/106 (2013.01); G11C 7/1057 (2013.01); G11C 7/222 (2013.01); H03K 3/0372 (2013.01); H03K 19/018521 (2013.01);
Abstract

Techniques are disclosed relating to level-shifting circuitry and time borrowing across voltage domains. In some embodiments, sense amplifier circuitry generates, based on an input signal at a first voltage level, an output signal at a second, different voltage level. Pulse circuitry may generate a pulse signal in response to an active clock edge of a clock signal that is input to the sense amplifier circuitry. Initial resolution circuitry may drive the output signal of the sense amplifier circuitry to match the value of the input signal during the pulse signal. Secondary resolution circuitry may maintain a current value of the output signal after expiration of the pulse signal. This may allow the input signal to change during the pulse, e.g., to enable time borrowing by upstream circuitry.


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