Patent ID: 7282955

Claim:
An on-die termination (ODT) circuit, comprising: a decoding means for decoding set values of an extended mode register set (EMRS); an ODT output driver block including a plurality of output driver units connected in parallel with an output node for outputting an output signal; and a control signal generation means for generating a plurality of pull up and pull down control signals for turning on/off the plurality of output driver units in response to output signals of the decoding means, wherein each of the output driver units includes: a pull up driver having a first pull up driving sector controlled by a corresponding one of the pull up control signals and a second pull up driving sector controlled by a corresponding one of the pull down control signals; and a pull down driver having a first pull down driving sector controlled by the corresponding one of the pull down control signals and a second pull down driving sector controlled by the corresponding one of the pull up control signals.