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:
Jan. 15, 2013
Filed:
Dec. 01, 2010
Nicolaas Klarinus Johannes Van Winkelhoff, Villard-Bonnot, FR;
Sebastien Nicolas Ricavy, Saint Martin d'Heres, FR;
Nicolaas Klarinus Johannes van Winkelhoff, Villard-Bonnot, FR;
Sebastien Nicolas Ricavy, Saint Martin d'Heres, FR;
ARM Limited, Cambridge, GB;
Abstract
An integrated circuit and method includes retention voltage generation circuitry which receives a supply voltage from a supply voltage node and provides a retention voltage. Functional circuitry is connected between the retention voltage node and a reference voltage node and is held in a data retention state when at least a minimum voltage is provided between the retention voltage node and the reference voltage node. Each of the circuits includes at least one p-type threshold device and at least one n-type threshold device, both having a characteristic threshold voltage. The p-type and n-type threshold devices are connected in parallel between the supply voltage node and the retention voltage node. A variation in the characteristic threshold voltage of either of the at least one p-type or the at least one n-type device maintains at least the minimum voltage between the retention voltage node and the reference voltage node.