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. 08, 1996
Filed:
Mar. 28, 1995
Applicant:
Inventors:
Akira Takata, Kobe, JP;
Tetsuo Hikawa, Kobe, JP;
Takashi Sawada, Kobe, JP;
Tom Dang-hsing Yiu, Milpitas, CA (US);
Ful-Long Ni, San Jose, CA (US);
Assignees:
Mega Chips Corporation, Suita, JP;
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
3652335 ; 36523001 ; 36523008 ; 365236 ; 365 94 ;
Abstract
In order to improve area efficiency of a mask ROM, a head address is inputted from a common pad (204) only in an initial access, so that addresses are thereafter changed by an internal counter (212). Data output is carried out through the common pad (204). Wires are employed for address input and data output in common, thereby remarkably reducing the number of wires.