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.

Date of Patent:
Dec. 27, 2016

Filed:

Dec. 21, 2012
Applicant:

Renesas Electronics Corporation, Kawasaki-shi, JP;

Inventors:

Takahiko Gomi, Tokyo, JP;

Tetsuya Suzuki, Tokyo, JP;

Assignee:

Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 21/00 (2006.01); H03K 23/00 (2006.01); H03K 25/00 (2006.01); H03L 1/02 (2006.01); G06F 1/20 (2006.01); G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
H03L 1/027 (2013.01); G06F 1/206 (2013.01); G06F 1/324 (2013.01); Y02B 60/1217 (2013.01);
Abstract

A semiconductor device includes an operation unit (CPU) provided in a semiconductor chip and a temperature sensor (TS) that measures a temperature of the semiconductor chip. The semiconductor device compares a measured temperature (Ta) measured by the temperature sensor (TS) with a predetermined reference temperature (Tref). When the measured temperature (Ta) is higher than the reference temperature (Tref), the semiconductor device switches a frequency of an operation clock to be supplied to the operation unit (CPU) from a first frequency to a second frequency higher than the first frequency.


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