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:
Sep. 29, 1998
Filed:
Oct. 11, 1996
Yasuhiro Yamamoto, Kasugai, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
An integrated circuit device equipped with a test circuit includes a plurality of input/output terminals, an input terminal, and an internal circuit for receiving input data via the plurality of input/output terminals and outputting output data. The test circuit permits data exchange among the input/output terminals, the input terminal and the internal circuit. The test circuit preferably operates in a normal mode to supply input data to the internal circuit through the input/output terminals, and supply output data from the internal circuit through the input/output terminals. The test circuit further operates in a test mode to supply test input data to the internal circuit through one of the input terminal and the input/output terminals. The test circuit further supplies test output data that is output from the internal circuit to one of the input terminal and the input/output terminals which differ from the test input data supplied terminal.