| 摘要 |
An integrated circuit (IC) of the invention is provided with a plural sets of power supply and ground lines within a package of the IC. Circuit elements, e.g., output buffers in the IC are divided into plural groups and each buffer group is coupled to the corresponding set of the power supply and ground lines. Each set of the power supply and ground lines is provided with independent wirings so that the magnitude of current change in each wiring and the value of each wiring inductance become small.
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