Semiconductor memory device and driving method thereof

Details Semiconductor memory device and driving method thereof Semiconductor memory device and driving method thereof

2006-12-29

2009-02-10

Lam, David (Department: 2827)

Static information storage and retrieval

Addressing

Sync/clocking

C365S194000, C365S189050

Reexamination Certificate

active

07489586

ABSTRACT:
A semiconductor memory device includes: a variable delay for delaying a delay locked loop (DLL) clock by a predetermined delay time to output a delayed DLL clock; an output driver for outputting data and data strobe signal in response to the delayed DLL clock; and a calibration controller for controlling the predetermined delay time of the variable delay in response to output AC parameters.

REFERENCES:
patent: 6859404 (2005-02-01), Kim
patent: 6996026 (2006-02-01), Brox et al.
patent: 7171321 (2007-01-01), Best
patent: 10-2005-0020359 (2005-03-01), None
patent: 10-2005-0048755 (2005-05-01), None
patent: 10-2005-0109813 (2005-11-01), None
Korean Notice of Allowance issued in Korean Patent Application No. KR 10-2006-0059735, dated Apr. 29, 2008.

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