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:
Sep. 11, 2012
Filed:
May. 18, 2010
Yasuo Kobayashi, Kanagawa, JP;
Yasuo Kobayashi, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
A static random access memory includes: a memory cell connected with a pair of bit lines and supplied with a power supply voltage from a first power supply; a precharge circuit configured to precharge the pair of bit lines with a precharge voltage; and a voltage reducing circuit including: a control circuit comprising a differential amplifier circuit configured to amplify a difference input of a reference voltage generated through resistance division of the power supply voltage and the precharge voltage supplied to a node to output a control signal; and a voltage reduction control transistor connected between the node and the first power supply and configured to generate the precharge voltage in response to the control signal. The precharge circuit includes: precharge transistors configured to control supply of the precharge voltage to the bit lines in response to a first precharge control signal.