| 摘要 |
PROBLEM TO BE SOLVED: To provide a termination resistance circuit which has a high resolution and a wide range of resistance values even in a state in which the area of the circuit is not increased. SOLUTION: The termination resistance circuit includes a control signal generator for generating a control signal whose logical value changes from a logical value shown when a calibration code has a value different from a predetermined value when the calibration code has the predetermined value, a plurality of parallel resistors which are mutually turned on/off in response to the calibration code, and a resistance value-changing means for changing the total resistance value of the termination resistance circuit in response to the control signal. COPYRIGHT: (C)2010,JPO&INPIT |
