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:
Oct. 18, 2016
Filed:
Jul. 15, 2015
Applicant:
Freescale Semiconductor, Inc., Austin, TX (US);
Inventors:
Assignee:
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/356 (2006.01); H03K 3/3562 (2006.01);
U.S. Cl.
CPC ...
H03K 3/356104 (2013.01); H03K 3/35625 (2013.01);
Abstract
A scannable flip-flop circuit and method for low power scan operation are provided. The scannable flip-flop includes a flip-flop for receiving an input signal, and for generating a flip-flop output signal. The scannable flip-flop also includes a voltage selection circuit coupled to the flip-flop. The voltage selection circuit supplies a first voltage to the flip-flop during a first state of a voltage selection signal, and supplies a second voltage to the flip-flop during a second state of the voltage selection signal. A series of scannable flip-flops may be arranged in a scan chain for testing during a scan test mode.