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:
May. 21, 2019
Filed:
Jul. 21, 2017
Renesas Electronics Corporation, Tokyo, JP;
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Abstract
Provided are an input buffer, a semiconductor device and an engine control unit making it possible to execute fault diagnosis in real time. The input buffer includes a first comparator which compares a voltage of an input signal with a first reference voltage, a hysteresis circuit which generates a first high voltage side or low voltage side reference voltage on the basis of a comparison result from the first comparator, a second comparator which compares the voltage of the input signal with a second reference voltage, and a hysteresis circuit which outputs a second high voltage side reference voltage which is higher than the first high voltage side reference voltage or a second low voltage side reference voltage which is lower than the first low voltage side reference voltage.