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:
Sep. 16, 2025
Filed:
Jan. 29, 2024
Texas Instruments Incorporated, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Embodiments disclosed herein relate to device testing using scan chains including various flip-flop devices in a multi-bit flip-flop configuration. A circuit device included herein includes a first flip-flop sub-circuit and a second flip-flop sub-circuit. The first flip-flop sub-circuit is coupled to receive a clock signal and an input, and the second flip-flop circuit is coupled to the first flip-flop sub-circuit. The first flip-flop sub-circuit includes an input sub-circuit, a first latch sub-circuit, a first latch tristate, a second latch sub-circuit, and a first output inverter. The second latch sub-circuit includes a first transmission gate, a first inverter, and a second inverter. The second flip-flop sub-circuit includes a second transmission gate, a first clock tristate, a third latch sub-circuit, a second latch tristate, a fourth latch sub-circuit, and a second output inverter. The fourth latch sub-circuit includes a third transmission gate, a third inverter, and a fourth inverter.