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:
Jan. 12, 1999
Filed:
Nov. 20, 1997
Yasuhiro Matsumoto, Hyogo, JP;
Mikio Asakura, Hyogo, JP;
Kouji Tanaka, Hyogo, JP;
Kyoji Yamasaki, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A plurality of internal power supply voltage generating circuits generate internal power supply voltages. A column select signal at the same voltage level as a first internal power supply voltage applied to a sense amplifier is generated to an I/O gate circuit connecting a bit line pair and an internal data line pair together. A current driving capability of an I/O gate circuit is made relatively small, so that rapid change in potential on a sense node of a sense amplifier is prevented. Thereby, inversion of latched data of the sense amplifier due to collision of data is prevented in such a case voltages on the internal data line pair are not equalized sufficiently.