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:
Dec. 31, 2002
Filed:
Feb. 28, 2001
Yasuhiro Konishi, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Common circuit includes inactivation/activation circuits. Exclusive circuits include inverters IV , IV , IV and IV at the input portions thereof. When an SDR-SDRM is to be produced, inactivation/activation circuit outputs an inactivation signal DASL fixed to a ground voltage to exclusive circuit, while inactivation/activation circuit outputs a signal /OE inverted from an output enable signal OE to exclusive circuit. Inverters IV and IV in exclusive circuit then output a signal based on the signal /OE. Further, an N-channel MOS transistor and a P-channel MOS transistor in exclusive circuit are completely turned off, so that no through current flows from a power-supply node to a ground terminal in exclusive circuit. As a result, generation of the through current is prevented in an inactivated circuit.