ODT CIRCUIT AND ODT METHOD CAPABLE OF MINIMIZING ON CHIP DC CURRENT CONSUMPTION AND MEMORY SYSTEM ADOPTING MEMORY DEVICE COMPRISING THE SAME

摘要

PURPOSE: An ODT(On-Die Termination) circuit and an ODT method are provided to minimize on-chip DC current consumption. CONSTITUTION: The ODT(On-Die Termination) circuit of a synchronous memory device(300) comprises a termination voltage port(VTP) receiving a termination voltage, and a data input/output port, and the first termination resistor(R-term1) whose one end is connected to the data input/output port, and a switch(TM) connecting the termination voltage port and another end of the first termination resistor selectively in response to a termination enable signal.