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. 25, 1996
Filed:
Jul. 27, 1994
Jun Nakai, Hyogo, JP;
Yuto Ikeda, Hyogo, JP;
Takeshi Kajimoto, Hyogo, JP;
Yuichiro Komiya, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A reference voltage generating circuit of a DRAM includes a current mirror circuit constituted of first to fourth transistors. The gate of the third transistor is connected to the source of a fifth transistor. When a zero-power on reset signal, which becomes L on turn-on of the power supply, and becomes H after a predetermined period, is applied to the gate of the fifth transistor, and an external power supply voltage is forced to be applied to the gate of the third transistor on turn-on of the power supply, a reference voltage following the rise of the external power supply voltage is provided from the output of the current mirror circuit.