| 摘要 |
A semiconductor device according to an embodiment of the present invention includes a semiconductor chip and a quartz oscillator. The semiconductor chip includes a first clock signal input terminal receiving a clock signal from the quartz oscillator, and a second clock signal input terminal receiving an externally generated clock signal. According to the device, it is possible to prevent simultaneous input of the clock signal from the quartz oscillator and the externally generated clock signal to the semiconductor chip.
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