| 摘要 |
<p>A semiconductor integrated circuit device (100) includes a plurality of data output buffer parts (310.1 to 310.j) in correspondence to a plurality of data input/output terminals. Each data output buffer part is supplied with a power supply potential and a ground potential by power supply lines and two ground lines connected with independent power supply pads and ground potential supply pads respectively. When outputting a high-level signal, each data output buffer part supplies a current to the corresponding data output terminal from the two power supply lines. Therefore, the value of a current flowing per power supply line can be suppressed for reducing noise caused on the power supply line. Similarly, noise caused on the ground lines can also be reduced. <IMAGE></p> |
