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, 1991
Filed:
Feb. 20, 1990
Manabu Shibata, Takasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A semiconductor integrated circuit device, in which a system including a plurality of modules (functional blocks) such as a microprocessor unit and a memory unit is integrated on the main surface of a single semiconductor substrate, and each module of the system is connected through its corresponding interface circuits to the external terminals. The external terminals and the interface circuits are provided on the main surface of said semiconductor substrate, and are connected through an internal bus line commonly used between said modules. Also, and commonly use or internal bus line is connected directly to said external terminals to permit connection to a common external bus line.