Embodiments of the invention relate generally to the field of duty cycle correction, and more particularly to method and apparatus for correcting duty cycle of a CMOS level signal when converted from a Current-Mode-Logic to a CMOS level signal via a CML to CMOS converter. The high-side switch circuit includes a second output MOS transistor that is connected to a second end of the first output MOS transistor at a first end thereof and to a voltage output terminal at a second end thereof. Command, address or write data signals stored in respective output latches in the memory controller are clocked by the in-phase signals from the internal strobe generator circuit.