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. 17, 2020

Filed:

Jul. 16, 2019
Applicant:

Marvell International Ltd., Hamilton, BM;

Inventors:

Krishnan S. Rengarajan, Bangalore, IN;

Alok Chandra, Bengaluru, IN;

Chethan Ramanna, Manyata T&D, IN;

Assignee:

MARVELL ASIA PTE, LTD., Singapore, SG;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/356 (2006.01); H03K 3/3562 (2006.01); H03K 3/012 (2006.01);
U.S. Cl.
CPC ...
H03K 3/35625 (2013.01); H03K 3/012 (2013.01);
Abstract

Disclosed is a flip-flop (FF) (e.g., a D-type flip-flop (DFF) or a scan flip-flop (SFF)). The FF is configured to reduce dynamic power consumption of an integrated circuit (IC) by employing only a single-phase of a clock signal. Specifically, the FF includes a primary latch and a secondary latch. Each of these latches includes a multi-stage input driver, which internally generates a control signal based on both the single-phase clock signal and an input signal and which also generates a stored bit signal based on the control signal. Each of these latches can also include a feedback path with an inverter that inverts the stored bit signal and a tri-state logic device that generates a feedback signal that is dependent on the inverted stored bit signal, the control signal and the clock signal. As a result, the FF is a fully digital, static, true single-phase clock (TSPC) flip-flop.


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