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:
Jun. 09, 1998
Filed:
Jun. 13, 1997
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A memory cell includes two bipolar transistors. An upper side word line is connected to the gates of one access transistor and one depletion type transistor in the memory cell. A lower side word line is connected to the gates of the other access transistor and the other depletion type transistor in the memory cell. In data write operation, the potential on the upper side word line is set to 'H' level for a prescribed period and the potential on the lower side word line is thereafter set to 'H' level for a prescribed period, regardless of the type of data. As a result, a circuit related to row decoding can be simplified since a circuit for determining the type of data is not necessary in the circuit related to row decoding.