Memory module with timing-controlled data paths in distributed data buffers
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United States of America Patent
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Nov 21, 2017
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N/A
app pub date -
Feb 7, 2017
filing date -
Jul 16, 2009
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Abstract
A memory module is operatable in a memory system with a memory controller. The memory module comprises a module control device mounted on the module board to receive command signals from the memory controller and to output module command signals and module control signals, and memory devices mounted on the module board to perform a first memory operation in response to the module command signals. The memory module further comprises a plurality of buffer circuits distributed across a surface of the module board. Each respective buffer circuit is associated with a respective set of the memory devices and includes logic that is configured to obtain timing information based on signals received by the each respective buffer circuit during a second memory operation prior to the first memory operation and to control timing of the data and strobe signals through the each respective buffer circuit in accordance with the timing information.
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