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. 07, 1991
Filed:
Dec. 08, 1988
Kazuhiro Akimoto, Tokorozawa, JP;
Masami Usami, Tokyo, JP;
Katsumi Ogiue, Tokyo, JP;
Hiroshi Murayama, Hadano, JP;
Hitoshi Abe, Hadano, JP;
Masamori Kashiyama, Hadano, JP;
Yoshikuni Kobayashi, Tokyo, JP;
Satoru Isomura, Tokyo, JP;
Kinya Mitsumoto, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Microcomputer Engineering Ltd., Tokyo, JP;
Abstract
Disclosed is a semiconductor integrated circuit wherein a logic circuit for exchanging signals with RAMS, with the RAMS being disposed centrally on the semiconductor chip or substrate, is divided into a plurality of logic circuits in accordance with the kind of signals and the divided logic circuits are disposed around the RAM in such a manner as to minimize the distance of signal transmission paths with the RAM and in order to attain high speed access to RAMS.