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:
Oct. 13, 1998
Filed:
Jan. 29, 1997
Yasuji Koshikawa, Tokyo, JP;
Hisashi Abo, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A semiconductor memory device of a synchronous type is disclosed, which has an output control circuit (14) adapted to output signals D2T and D2N by activating one of two conduction control signals D1T or by inactivating both of the conduction control signals in accordance with an output control signal MSK2B or OEB for controlling whether a data output terminal DQ is to be actuated or set into a high impedance, and an output circuit 17 provided with a couple of latch circuits 15 and 16 each adapted to individually latch and output the corresponding conduction control signals in synchronism with an internal synchronizing signal .phi.3. There is further provided an additional latch circuit 13 latching the output control signal in response to an inverted signal of the internal synchronizing signal .phi.3.