Non-volatile memory device, storage device including the same device, and method of operating the same storage device

A storage device comprising:

• a first non-volatile memory device and a second non-volatile memory device connected to a first channel, the first non-volatile memory device and the second non-volatile memory device configured to perform a data input/output operation through the first channel;
• and
• a storage controller configured to
• provide a data input/output command for the data input/output operation to the first non-volatile memory device through a command address pin connected to the first channel,
• perform the data input/output operation for the first non-volatile memory device through a data pin connected to the first channel that is different from the command address pin, and
• receive a noise state data on at least one of the first and the second non-volatile memory devices in parallel with the data input/output operation through the command address pin.

An operation method of a storage device comprising:

• providing a data input/output command through a command address pin;
• performing a data input/output operation through a data pin different from the command address pin based on the data input/output command;
• providing a noise monitoring command through the command address pin according to a condition during the data input/output operation;
• and
• receiving a noise state data through the command address pin in response to the noise monitoring command.