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. 04, 1994
Filed:
Sep. 11, 1992
Kenji Anami, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A static random access memory includes a plurality of memory cells each constituted by 5 elements. One memory cell is connected to a single bit line through a single access gate transistor. Additionally, a source line potential controlling circuit is provided for applying a predetermined intermediate potential to the source of a driver transistor of the memory cell in a column which is not accessed, when the memory cell is not accessed. Since one memory cell is constituted by only five elements, and connected to a single bit line, its density is improved. Furthermore, since a power supply voltage applied to the memory cell provided in the column which is not accessed is decreased by an effect of a source line potential controlling circuit, power consumption is decreased, and moreover, destruction of the memory cell can be prevented.