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:
Apr. 05, 2022
Filed:
Mar. 30, 2021
Nxp B.v., Eindhoven, NL;
Jorge Ernesto Perez Chamorro, Bussigny, CH;
Michael Elsasser, Austin, TX (US);
NXP B.V., Eindhoven, NL;
Abstract
A method and apparatus are described for OTP control logic with randomization for sensing and writing fuse values. In an embodiment, OTP control logic has an address counter to determine an address of a fuse to be read from an OTP fuse box and a corresponding address of a shadow register, a fuse box addressing circuit to read a fuse value from a fuse of the fuse box, a clock circuit coupled to the address counter to provide a clock signal to the address counter, and a randomization circuit to interrupt the clock signal at random times to prevent the address counter from determining a next address in response to the clock signal.