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US 2014/0153350 A1Published application
Methods and apparatuses for refreshing memory
AssigneeMicron Technology, Inc.
InventorsAaron P. Boehm, Jeffrey P. Wright
Life of this patent
Estimating the term…
Abstract
Apparatuses and methods for memory refreshing memory cells is described. An example method includes receiving a self refresh command at a memory. The method further includes refreshing the memory at a first refresh rate after receiving the self refresh command. The method further includes refreshing the memory at a second refresh rate in response to a determination that each memory cell of the memory has been refreshed at the first refresh rate. The first refresh rate is greater than a second refresh rate.
Claims24
A method, comprising:
- receiving a self refresh command at a memory;
- refreshing the memory at a first refresh rate in response to receiving the self refresh command;
- and
- refreshing the memory at a second refresh rate in response to a determination that the memory has been refreshed at the first refresh rate, wherein the first refresh rate is greater than a second refresh rate.
1 more element
An method, comprising:
- receiving a self refresh command at a memory;
- initializing a count responsive to receiving the self refresh command;
- refreshing the memory at a first refresh rate responsive to receiving the self refresh command;
- changing a count provided by the counter corresponding to each iterative refresh of the memory;
- and
- refreshing the memory at a second refresh rate in response to the count indicating that the memory has been refreshed at the first refresh rate.
3 more elements
An apparatus comprising:
- a self refresh mode controller comprising:
- self refresh mode controller logic configured to receive a self refresh command, and configured to, in to response receipt of the self refresh command, provide refresh commands to provide memory cells of a memory to be refreshed at a first refresh rate during a first time period in which self refresh is enabled to cause the memory cells to be refreshed, and further configured to provide refresh commands at a second refresh rate during a second time period in which the self refresh is enabled.
An apparatus comprising:
- a memory array;
- and
- self refresh mode controller configured to receive a self refresh command, and configured to, in response to receipt of the self refresh command, provide refresh commands to the memory array at a first refresh rate, the self refresh mode controller further configured to provide refresh commands to the memory at a second refresh rate in response to a determination that all of the memory array has been refreshed at the first refresh rate.
Dependencies are inferred from the claim text.