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. 21, 2025
Filed:
Oct. 20, 2022
Stmicroelectronics (Grenoble 2) Sas, Grenoble, FR;
Stmicroelectronics (Alps) Sas, Grenoble, FR;
Nicolas Moeneclaey, Vourey, FR;
Jean-Luc Patry, Crolles, FR;
STMicroelectronics (Alps) SAS, Grenoble, FR;
STMicroelectronics (Grenoble 2) SAS, Grenoble, FR;
Abstract
In embodiments, an integrated circuit is provided that includes an input/output cell having a first signal terminal and a second signal terminal connected to a domain and capable of withstanding a maximum voltage greater than the power supply voltage. The input/output cell further includes an array of N diodes coupled in series between the second signal terminal and a cold power supply point. The array has an overall threshold voltage greater than the maximum voltage. The integrated circuit further includes a control circuit connected between the first signal terminal and the array of diodes. The control circuit is configured, in the presence of a second voltage on the first signal terminal greater than the maximum voltage, to automatically and autonomously short-circuit at least one of the diodes in the array to limit the voltage on the second signal terminal to a third voltage less than the maximum voltage.