A data interface circuit includes a first latch corresponding to a first data signal, and suitable for outputting first data based on toggling of a data strobe signal; a second latch corresponding to a second data signal, and suitable for outputting second data based on toggling of the data strobe signal; and a skew control circuit suitable for delaying the first data signal by a predetermined time, applying the delayed first data signal to the first latch, controlling the delayed first data signal based on a result of comparing the first data signal and the second data signal, and applying the controlled delayed first data signal to the second latch.