Memory device including volatile memory, nonvolatile memory and controller
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United States of America Patent
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Jan 9, 2018
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N/A
app pub date -
Mar 17, 2017
filing date -
Dec 7, 2016
priority date (Note) -
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Abstract
According to one embodiment, a memory device is connectable to a host, and includes a nonvolatile memory, a volatile memory which is used as a cache of the nonvolatile memory and has a higher access speed than the nonvolatile memory, and a controller which controls access to the nonvolatile memory and the volatile memory. The controller increments, when the controller receives a refresh command for the volatile memory from the host, a value of a refresh counter, and executes, when the value of the refresh counter exceeds a threshold, no refresh operation corresponding to the refresh command.
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