Semiconductor memory device and driving method thereof
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United States of America Patent
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Dec 1, 2020
Grant Date -
Apr 10, 2014
app pub date -
Dec 9, 2013
filing date -
Jun 29, 2006
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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.
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