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. 15, 2019
Filed:
May. 23, 2016
Sarma Vrudhula, Chandler, AZ (US);
Niranjan Kulkarni, Tempe, AZ (US);
Sarma Vrudhula, Chandler, AZ (US);
Niranjan Kulkarni, Tempe, AZ (US);
Arizona Board of Regents on Behalf of Arizona State University, Scottsdale, AZ (US);
Abstract
A sequential state element (SSE) is disclosed. In one embodiment, an SSE includes a differential sense flip flop (DSFF) and a completion detection circuit (CDC) operably associated with the DSFF. The DSFF is configured to generate a differential logical output. During a normal operational mode, the DSFF is synchronized by a clock signal to provide a differential logical output in a differential output state in accordance with a data input or in a precharge state based on the clock signal. The differential logical output is provided in a differential output state in accordance with a test input during a scan mode. The CDC is configured to generate a test enable input during the scan mode that indicates the scan mode once the differential logical output is in the differential output state. Accordingly, another SSE can be asynchronously triggered to operate in the scan mode without a separate scan clock.