Semiconductor device
View Patent ↗A semiconductor device according to this invention includes a first power line that supplies power to a first circuit, a second power line that supplies power to a second circuit, and a capacitive element that is provided between the first power line and the second power line.
1. An electronic device comprising:
first and second power lines that supply an operating voltage to a first circuit comprising an output circuit;
third and fourth power lines, different from the first and second power lines, that supply an operating voltage to a second circuit different from said first circuit;
a first capacitive element having one end connected to said first power line and another end connected to said third power line; and
a second capacitive element having one end connected to said first power line and another end connected to said second power line,
wherein the second circuit comprises a circuit configured to provide a data signal to the output circuit.
2. The electronic device according to claim 1 , further comprising:
a third capacitive element having one end connected to said third power line and another end connected to said fourth power line.
3. The electronic device according to claim 1 , further comprising:
a third capacitive element having one end connected to said second power line and another end connected to said fourth power line.
4. The electronic device according to claim 1 , further comprising:
a switching element connected in series with said first capacitive element between said first power line and said third power line.
5. The electronic device according to claim 1 , further comprising:
a chip to which first to fourth power supply terminals and an output terminal are connected;
first to fourth connecting lines that respectively connect said first to fourth power lines to the first to fourth power supply terminals, respectively; and
an output line that connects the output terminal to the first circuit.
6. A method comprising:
supplying, via first and second power lines, an operating voltage to a first circuit comprising an output circuit;
supplying, via third and fourth power lines that are different from the first and second power lines, an operating voltage to a second circuit, different from said first circuit,; and
providing a data signal to the output circuit via the second circuit,
wherein between and connected to the first and third power lines is a first capacitive element, and between and connected to the first and second power lines is a second capacitive element.
7. The method according to claim 6 , wherein between and connected to the third and fourth power lines is a third capacitive element.
8. The method according to claim 6 , wherein between and connected to the second and fourth power lines is a third capacitive element.
9. The method according to claim 6 , wherein the electronic device further comprises a switching element connected in series with said first capacitive element between said first power line and said third power line.
10. The method according to claim 6 , wherein the electronic device further comprises:
a chip to which first to fourth power supply terminals and an output terminal are connected;
first to fourth connecting lines that respectively connect said first to fourth power lines to the first to fourth power supply terminals, respectively; and
an output line that connects the output terminal to the first circuit.