| 摘要 |
PURPOSE: An on-die termination and a method for controlling the same are provided to compensate the variation of the whole resistance of the semiconductor memory device by comparing on-die termination resistance with reference resistance. CONSTITUTION: A termination resistor unit(201) comprises a plurality of resistance units(203,205,207,209,211,213). The resistance of a plurality of resistance unit is controlled in response to a termination control signal. A resistance sensor(219) senses the resistance error of the termination resistor unit. The resistance sensor outputs a resistance sensing signal. Resistance control parts(215,217) are connected in parallel with the termination resistor unit and control the resistance. |
