Panasonic Corporation

Tetsuji Gotou

Hiroo Yamamoto

A semiconductor integrated circuit which operates based on a power supply voltage output from a power supply device configured to generate a voltage of a magnitude in accordance with an analog control signal includes: a first terminal to which the power supply voltage is applied; an internal interconnect which is connected to the first terminal, and distributes the power supply voltage to sections in the semiconductor integrated circuit; and a second terminal from which the analog control signal is output. The analog control signal is generated to have a magnitude in accordance with a potential of the internal interconnect.

Semiconductor integrated circuit and electronic apparatus provided with same

A power supply potential detecting circuit detects a power supply potential of a second circuit block when a first circuit block shifts from a power supply shutdown state to a power supply feeding state or shifts from the power supply feeding state to the power supply shutdown state. Then, an operation control circuit temporarily stops a function of the second circuit block when the first circuit block shifts from the power supply shutdown state to the power supply feeding state or shifts from the power supply feeding state to the power supply shutdown state and then recovers the function of the second circuit block based on a detection result outputted from the power supply potential detecting circuit.

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Osaka, Japan

Tetsuji Gotou