Semiconductor memory device and semiconductor system including semiconductor memory device and operating method for the same

PURPOSE: A semiconductor memory device and a semiconductor system including a semiconductor memory device and operating method for the same are provided to stably input/output data between a semiconductor memory device controller and a semiconductor memory device regardless of data phase variation. CONSTITUTION: In a semiconductor memory device and a semiconductor system including a semiconductor memory device and operating method for the same, a first data input/output unit receives normal training data. The first data input/output unit outputs normal training data. The edge of data window is synchronized with the edge of a source clock. A second data input/output unit(120) receives recovery information training data. The edge of data window is synchronized with the edge of the source clock.