Abstract: A circuit device includes a battery power supply terminal, an energy harvest power supply terminal, a storage power supply terminal, a power supply switch circuit, and a control circuit that controls the power supply switch circuit. In a first state, the power supply switch circuit outputs a storage power supply voltage to a supply node while charging the battery by supplying an energy harvest power supply voltage to the battery power supply terminal. In a second state, the power supply switch circuit outputs the storage power supply voltage and the energy harvest power supply voltage to the supply node while charging a storage capacitor by supplying the energy harvest power supply voltage to the storage power supply terminal.

Abstract: A real-time clock module includes: an oscillation circuit configured to generate a first clock signal by oscillating a resonator; an interface circuit configured to receive alarm setting data; a memory in which the alarm setting data and a program are to be stored; and a processor configured to execute the program to perform a comparison process of comparing clocking data generated based on the first clock signal with the alarm setting data, and output an alarm signal according to a result of the comparison process.

Abstract: A timer includes a timing counter configured to generate a timing datum, a clock pulse signal generation circuit configured to generate a clock pulse signal used to operate the timing counter, and an interface circuit configured to receive an access signal, wherein the timing counter is an asynchronous counter, and the clock pulse signal generation circuit generates the clock pulse signal having a first pulse width when there is a possibility that the interface circuit receives the access signal, and generates the clock pulse signal having a second pulse width longer than the first pulse width when there is no possibility that the interface circuit receives the access signal.

Abstract: A circuit device includes an oscillation circuit that generates an oscillation signal by using an oscillator, a processing unit that controls the oscillation circuit, and an interface unit that outputs authentication information to an external device. The authentication information being information based on specific information of the circuit device and is used to authenticate the circuit device.

Abstract: A timer includes a timing counter configured to generate a timing datum, a clock pulse signal generation circuit configured to generate a clock pulse signal used to operate the timing counter, and an interface circuit configured to receive an access signal, wherein the timing counter is an asynchronous counter, and the clock pulse signal generation circuit generates the clock pulse signal having a first pulse width when there is a possibility that the interface circuit receives the access signal, and generates the clock pulse signal having a second pulse width longer than the first pulse width when there is no possibility that the interface circuit receives the access signal.

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).

Abstract: A circuit device includes an oscillation circuit that generates an oscillation signal by using an resonator, a processing circuit that controls the oscillation circuit, and a storage circuit that stores temperature compensation data of an oscillation frequency of the oscillation signal. The processing circuit generates specific PUF information of the circuit device on the basis of the temperature compensation data.

Abstract: A real-time clock device includes an oscillation circuit configured to generate an oscillation signal using a resonator, a clocking circuit configured to generate present time data based on the oscillation signal, an interface circuit configured to receive a time rewriting request and time rewriting data for the present time data from an external device, and a control circuit configured to perform comparison processing of the present time data of the clocking circuit and the time rewriting data to determine whether the time rewriting data is legitimate.

Abstract: A clocking device includes a first clocking circuit that generates first clocking data in synchronization with a clock signal, a second clocking circuit that generates second clocking data which is updated in a cycle longer than a cycle in which the first clocking data is updated, an interface circuit that transmits the first clocking data to an external device, and receives a first correction value from the external device, and a storage circuit that stores the first correction value, in which the first clocking circuit sets the first correction value in the first clocking data so as to correct an update timing of the second clocking data.

Abstract: A real-time clock device includes an oscillation circuit configured to generate an oscillation signal using a resonator, a clocking circuit configured to generate present time data based on the oscillation signal, an interface circuit configured to receive a time rewriting request and time rewriting data for the present time data from an external device, and a control circuit configured to perform comparison processing of the present time data of the clocking circuit and the time rewriting data to determine whether the time rewriting data is legitimate.

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).

Abstract: A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX).

Abstract: A timing device includes a counter that performs counting action in synchronization with pulses in a clock signal to generate a 6-bit count value representing decimal numbers “0” to “39” in each count cycle in order to perform counting action on a 1/100-second basis and an output control circuit that outputs upper 4 bits of the count value generated by the counter as 4-bit timed data representing time on a 1/1000-second basis.

Abstract: A circuit device includes an A/D conversion section adapted to perform an A/D conversion of a temperature detection voltage from a temperature sensor to output temperature detection data, a processing section adapted to perform a temperature compensation process of an oscillation frequency based on the temperature detection data to output frequency control data of the oscillation frequency, and an oscillation signal generation circuit adapted to generate an oscillation signal using the frequency control data and a resonator. The processing section may change the frequency control data in increments of k×LSB (k?1) based on a change in temperature.

Abstract: A clocking device includes a first clocking circuit that generates first clocking data in synchronization with a clock signal, a second clocking circuit that generates second clocking data which is updated in a cycle longer than a cycle in which the first clocking data is updated, an interface circuit that transmits the first clocking data to an external device, and receives a first correction value from the external device, and a storage circuit that stores the first correction value, in which the first clocking circuit sets the first correction value in the first clocking data so as to correct an update timing of the second clocking data.

Abstract: An oscillation circuit includes an oscillating circuit adapted to oscillate a resonator element, a capacitance circuit connected to the oscillating circuit, and capable of correcting an oscillation frequency of the oscillating circuit, a logic circuit to which a signal output from the oscillating circuit is input, and which is capable of correcting a frequency of the signal, and a control circuit adapted to control an operation of the capacitance circuit and an operation of the logic circuit.

Abstract: An oscillation circuit includes an oscillating circuit adapted to oscillate a resonator element having a frequency-temperature characteristic, and a frequency adjustment circuit having a capacitance circuit connected to the oscillating circuit and adapted to adjust an oscillation frequency of the oscillating circuit, and a logic circuit, to which a signal having been output from the oscillating circuit is input, and which adjusts a frequency of the signal, and the frequency adjustment circuit compensates the frequency-temperature characteristic using at least the capacitance circuit in a predetermined temperature range, and compensates the frequency-temperature characteristic using the logic circuit alone outside the predetermined temperature range.

Abstract: A circuit device includes an oscillation circuit that generates an oscillation signal by using an oscillator, a processing unit that controls the oscillation circuit, and an interface unit that outputs authentication information to an external device. The authentication information being information based on specific information of the circuit device and is used to authenticate the circuit device.

Abstract: A circuit device includes an oscillation circuit that generates an oscillation signal by using an resonator, a processing circuit that controls the oscillation circuit, and a storage circuit that stores temperature compensation data of an oscillation frequency of the oscillation signal. The processing circuit generates specific PUF information of the circuit device on the basis of the temperature compensation data.

Abstract: A circuit device includes a processing unit that detects occurrence of an internal event of the circuit device, a storage unit, and a clocking unit that generates clocking data which is real-time clock information on the basis of an oscillation signal generated using a resonator. The processing unit stores specific information on the internal event and the clocking data when the occurrence of the internal event is detected, in the storage unit when the occurrence of the internal event is detected.