VOLTAGE DROP MEASUREMENT CIRCUIT
First Claim
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1. A voltage drop measurement circuit comprising:
- a voltage drop circuit to generate an output voltage and fluctuate the output voltage according to a fluctuation of a power supply voltage, the output voltage being the power supply voltage dropped by a predetermined amount; and
a flip-flop to retain a flag indicating a drop of the power supply voltage according to the output voltage.
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Abstract
A voltage drop measurement circuit includes a voltage drop circuit to generate an output voltage and fluctuate the output voltage according to a fluctuation in a power supply voltage, where the output voltage being the power supply voltage dropped by a predetermined amount and a flip-flop to retain a flag indicating a drop in the power supply voltage according to the output voltage.
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Citations
10 Claims
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1. A voltage drop measurement circuit comprising:
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a voltage drop circuit to generate an output voltage and fluctuate the output voltage according to a fluctuation of a power supply voltage, the output voltage being the power supply voltage dropped by a predetermined amount; and a flip-flop to retain a flag indicating a drop of the power supply voltage according to the output voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A semiconductor device comprising a plurality of voltage drop measurement circuits,
wherein the voltage drop circuit includes: -
a voltage drop circuit to generate an output voltage and fluctuate the output voltage according to a fluctuation in a power supply voltage, the output voltage being the power supply voltage dropped by a predetermined amount; and a flip-flop to retain a flag indicating a drop in the power supply voltage according to the output voltage.
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Specification