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:
Aug. 10, 1999
Filed:
Jan. 27, 1998
Takahiro Sonoda, Fussa, JP;
Sadayuki Morita, Higashiyamato, JP;
Hirofumi Zushi, Fussa, JP;
Haruko Kawachino, Urawa, JP;
Hideharu Yahata, Chofu, JP;
Kenichi Fukui, Kodaira, JP;
Tomohiro Nagano, Akishima, JP;
Masashige Harada, Fucyu, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi ULSI Engineering Corp., Tokyo, JP;
Abstract
A static RAM has plurality of memory mats each including a plurality of static memory cells formed in a matrix pattern at points of intersection between a plurality of word lines and a plurality of data lines. upon receipt of an address signal into an address register, an address selection circuit selects a memory cell in one of the memory mats, and connects the selected memory cell to a sense amplifier or a write amplifier furnished corresponding to the memory mat in question. At the same time, an address counter generates an address signal corresponding to the address signal by which one of the memory mats has been selected. When a burst mode is designated by a control signal, the address signal admitted to the address register is used to select a memory cell in a first memory mat. The selected memory cell is connected to the corresponding sense amplifier or write amplifier. Then in accordance with the address signal generated by the address counter, a memory cell in another memory mat is selected and connected to the corresponding sense amplifier or write amplifier.