METHOD, APPARATUS AND SYSTEM FOR DETERMINING A COUNT OF ACCESSES TO A ROW OF MEMORY
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United States of America Patent
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Issued Date -
Mar 27, 2014
app pub date -
Sep 25, 2012
filing date -
Sep 25, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Techniques and mechanisms for determining a count of accesses to a row of a memory device. In an embodiment, the memory device includes a counter comprising circuitry to increment a value of the count in response to detecting a command to activate the row. Circuitry of counter may further set a value of the count to a baseline value in response to detecting a command to refresh the row. In another embodiment, the memory device includes evaluation logic to compare a value of the count to a threshold value. A signal is generated based on the comparison to indicate whether a row hammer event for the row is indicated.
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