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. 24, 2000
Filed:
Apr. 22, 1999
Applicant:
Inventor:
Hiroyuki Noji, Chigasaki, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
714719 ;
Abstract
A semiconductor integrated circuit device is disclosed, which has an internal circuit that operates during a normal operation on the basis of a reference signal and input signals supplied from the outside of the device. A detecting circuit detects the voltage level of the reference signal. When the detecting circuit has detected that the reference signal is at a predetermined voltage level that differs from a voltage level assumed during the normal operation, a transfer circuit transfers an internal signal in the internal circuit to the outside of the device, instead of the regular output signal of the internal circuit.