MEMORY DEVICE AND ELECTRONIC DEVICE PERFORMING ADAPTIVE ERROR CORRECTION ACCORDING TO PRE-CHECKED ERROR RATE AND METHOD OF OPERATING MEMORY DEVICE

摘要

A memory device for performing error correction comprises a test vector generator generating a test vector to be written in a storage device; a data mismatch checker comparing read data read from the storage device with the test vector and generating an information signal corresponding to the difference between them; an error correction code controller performing error correction code encoding and decoding in accordance with any one of error correction code levels in response to a control signal inputted; and a memory controller controlling the test vector generator, the data mismatch checker, and the error correction code controller and transmitting a control signal corresponding to an error rate of the storage device to the error correction code controller in response to the information signal generated from the data mismatch checker.