Memory controller and method of operating the same

A memory controller for controlling a memory device that stores data, comprising:

• a bit counter configured to generate a first count value by counting a number of bits in a host data to be programmed at an address in the memory device in response to a program request received from a host;
• a flash translation layer configured to generate a first page information indicating the address of the programmed data stored in the memory device;
• an additional data generator configured to generate a judgment data based on the first count value and the first page information;
• a comparator configured to generate a comparison information by comparing the judgment data with detection data, wherein the detection data is generated using the programmed data read from the memory device in response to a read request received from the host;
• and
• a read data controller configured to perform an operation of correcting an error in the programmed data read from the memory device based on the comparison information.