APPARATUS FOR DETECTING MEMORY DATA BASED ON SOFT DECISION VALUE

摘要

An apparatus for detecting memory data based on a soft decision value are provided to minimize an error of data stored in a memory cell by allotting a soft decision value according to error information. In an apparatus for detecting memory data based on a soft decision value, a reference voltage determination unit(110) determines a soft decision value based on channel information of a memory cell. A voltage comparative part(120) determines a period which includes a threshold voltage by comparing the threshold voltage of the memory cell with a plurality of soft-decision reference voltages. A data detection part detects data stored in memory cell by a period where a threshold voltage is included. A pilot data storage module(140) stores pilot data of the small bit pattern in the memory cell. The data detection part detects the pilot data stored in the memory cell. A channel information estimating unit(150) estimates the channel information of the memory cell based on detected data.