An integrated circuit (IC) and a mobile device are provided. The IC includes a memory cell that includes a word line, a bit line pair, and a storage cell connected to the word line and the bit line pair. The IC further includes a timing control circuit configured to generate switch signals based on an operation control signal, and a switch circuit configured to receive a first voltage, a second voltage and a third voltage having different levels, and output, to the word line, one among the first voltage, the second voltage, and the third voltage based on the switch signals.