01-03-2012 дата публикации
Номер: US20120049943A1
A semiconductor integrated circuit includes a first voltage line to which a first ground voltage is applied, a second voltage line to which a second ground voltage is applied, a third voltage line to which a first power supply voltage is applied, and a coupling unit including a MOS transistor having a source coupled to the first voltage line, a drain coupled to the second voltage line, and a gate coupled to the third voltage line. 1. A semiconductor integrated circuit comprising:a first voltage line to which a first ground voltage is applied;a second voltage line to which a second ground voltage is applied;a third voltage line to which a first power supply voltage is applied; anda coupling unit including a MOS transistor having a source coupled to the first voltage line, a drain coupled to the second voltage line, and a gate coupled to the third voltage line.2. The semiconductor integrated circuit of claim 1 , further comprising:a fourth voltage line to which a second power supply voltage is applied; anda pre-driver configured to be driven by the second power supply voltage and the second ground voltage, receive data in synchronization with a clock signal, and drive a pull-up signal and a pull-down signal.3. The semiconductor integrated circuit of claim 2 , further comprising an output driver configured to be driven by the first power supply voltage and the first ground voltage claim 2 , receive the pull-up signal and the pull-down signal claim 2 , and drive output data.4. The semiconductor integrated circuit of claim 2 , further comprising:a first voltage stabilization unit coupled between the first power supply voltage and the first ground voltage; anda second voltage stabilization unit coupled between the second power supply voltage and the second ground voltage.5. A semiconductor integrated circuit comprising:a coupling unit configured to reduce high frequency power noises, wherein the coupling unit includes:a well region formed between isolation films on a ...
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