Signal transfer circuit and operating method thereof

A signal transfer circuit includes a signal input unit suitable for generating an input signal corresponding to a first voltage level and a second voltage level, a transfer control unit suitable for controlling a driving path of a transfer node in response to a control signal and selectively driving the transfer node to the second voltage level or a third voltage level, which is higher than the first voltage level, based on the driving path in response to the input signal, and an output control unit suitable for outputting an output signal by driving an output node based on a voltage level of the transfer node or maintaining a previous voltage level of the output node in response to the control signal.