Micron Technology, Inc.
Apparatus for determining data states of memory cells

Abstract:

Memory having a controller configured to cause the memory to determine a plurality of activation voltage levels for the plurality of memory cells, determine a plurality of activation voltage level distributions based on a subset of the plurality of activation voltage levels with each of the activation voltage level distributions corresponding to a respective first subset of memory cells of a plurality of first subsets of memory cells of the plurality of memory cells, determine a plurality of transition voltage levels based on the plurality of activation voltage level distributions, and assign a respective data state of a plurality of data states to each memory cell of a second subset of memory cells of the plurality of memory cells based on the determined activation voltage of that memory cell and the determined plurality of transition voltage levels.