ON CHIP DETERMINED DYNAMIC READ REFERENCE LEVEL FOR NON-VOLATILE STORAGE
    7.
    发明授权
    ON CHIP DETERMINED DYNAMIC READ REFERENCE LEVEL FOR NON-VOLATILE STORAGE 有权
    在芯片确定的非易失性存储动态读取参考电平

    公开(公告)号:EP2758963B1

    公开(公告)日:2018-05-02

    申请号:EP12762734.7

    申请日:2012-09-13

    摘要: Dynamically determining read levels on chip (e.g., memory die) is disclosed herein. One method comprises reading a group of non-volatile storage elements on a memory die at a first set of read levels. Results of the two most recent of the read levels are stored on the memory die. A count of how many of the non-volatile storage elements in the group showed a different result between the reads for the two most recent read levels is determined. The determining is performed on the memory die using the results stored on the memory die. A dynamic read level is determined for distinguishing between a first pair of adjacent data states of the plurality of data states based on the read level when the count reaches a pre-determined criterion. Note that the read level may be dynamically determined on the memory die.