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:
Mar. 30, 1993
Filed:
Sep. 04, 1991
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ; G11C / ;
U.S. Cl.
CPC ...
36518905 ; 365221 ; 36518912 ; 365233 ; 36518909 ; 377 78 ; 377 67 ;
Abstract
A semiconductor memory has an output data latch circuit controlled in response to a clock signal shifted by a half period from a control clock input to n one-bit shift register stages. The memory device includes a plurality of read data latch circuits, as well as a plurality of write or address data latch circuits, coupled to the n one-bit shift register stages and to a plurality of selector or multiplexor circuits. A noise filter is inserted in a clock input supply path to the n one-bit shift register stages but is not inserted in a clock input supply path to the output data latch circuit.