A data transfer circuit in a nonvolatile memory device includes first repeaters, second repeaters and signal lines. The signal lines connect the first repeaters and the second repeaters, and include a first group of signal lines and a second group of signal lines alternatingly arranged. The first repeaters include a first group of repeaters activated in a first operation mode and a second group of repeaters activated in a second operation mode. The second repeaters include a third group of repeaters activated in the first operation mode and are connected to the first group of repeaters through the first group of signal lines floated in the second operation mode, and a fourth group of repeaters activated in the second operation mode and are connected to the second group of repeaters through the second group of signal lines floated in the first operation mode.