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. 12, 2016
Filed:
Aug. 20, 2014
Sanjay Kumar Wadhwa, Noida, IN;
Avinash Chandra Tripathi, Noida, IN;
Sanjay Kumar Wadhwa, Noida, IN;
Avinash Chandra Tripathi, Noida, IN;
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Abstract
An integrated circuit with a testable power-on-reset (POR) circuit includes a voltage divider, an inverter, a level-shifter, a buffer and a flip-flop. The voltage divider receives a first supply voltage and generates a second supply voltage. The POR circuit receives the second supply voltage and generates a POR voltage signal when the second supply voltage exceeds a POR de-assertion threshold. The level-shifter receives the POR voltage signal and an inverted POR voltage signal from the inverter circuit and generates a level-shifted POR voltage signal at a voltage level of the first supply voltage. The buffer receives the level-shifted POR voltage signal and outputs a delayed level-shifted POR voltage signal. The flip-flop receives the first supply voltage as data input, the delayed level-shifted POR voltage signal as clock input, the level-shifted POR voltage signal as reset input, and outputs a voltage-monitor signal at the voltage level of the first supply voltage.