Data storage device for performing read operation and operating method thereof

Abstract

A storage device having improved performance includes: a plurality of memory devices, each memory device including a plurality of memory blocks, the plurality of memory devices coupled to a channel; and a memory controller coupled to the channel to be in communication with the plurality of memory devices to provide a read command for instructing a read operation on the plurality of memory blocks to read out data and provide a read enable signal to the memory devices during at least part of an idle time of the channel, which occurs while the read operation is being performed. The plurality of memory devices output first data to the memory controller through the channel in response to the read enable signal, wherein the first data is different from the data previously read out by the read operation that provides the read enable signal in response to the read command.