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:
Nov. 30, 1993
Filed:
Sep. 29, 1992
Susumu Hatano, Tokyo, JP;
Kanji Oishi, Tokyo, JP;
Takashi Kikuchi, Tokyo, JP;
Yasuhiko Saigou, Tokyo, JP;
Hiroshi Fukuta, Tokyo, JP;
Kunio Uchiyama, Tokyo, JP;
Hirokazu Aoki, Tokyo, JP;
Osamu Nishii, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi VLSI Engineering Corp., Tokyo, JP;
Abstract
A static memory cell is connected with word lines and data lines. First and second switches are connected in series between a data line and on output circuit. A sense amplifier has an input/output terminal connected to a common connection point of the said first and second switches. The first switch is turned off in synchronism with commencing operation of the sense amplifier such that the parasitic capacitance of the data line as viewed from the sense amplifier decreases. The second switching means is turned on a predetermined time later in order to transmit the output signal of the sense amplifier to the output circuit.