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:
Mar. 02, 1999
Filed:
Jun. 20, 1997
Tamotsu Suzuki, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A functional circuit is formed in a chip. A selector circuit is provided, which connects monitor points to electrode pads for external connections for testing the monitor points of the functional circuit. A control circuit is provided for supplying to the selector circuit a control signal which determines whether or not the monitor point is to be connected to the electrode pad by the selector circuit. The control circuit includes a counter circuit having a plurality of cascade-connected flip-flops, a clock signal input terminal for supplying a clock signal to each of the flip-flops in sequence from the flip-flop at an end of the counter circuit, and a reset signal input terminal for supplying a reset signal.