Semiconductor device
AssigneeRenesas Electronics Corporation
InventorYuki Yoshioka
Life of this patent
Estimating the term…
Abstract
A semiconductor device includes: a plurality of input circuits each of which receives one of an analog signal and a digital signal, the input circuits being supplied a power supply; a selector that selects one of the input circuits; and an analog-to-digital (AD) converter that performs AD conversion of an analog signal input to the selected input circuit. After the selector selects one of the input circuits, the selector selects another of the input circuits. When the selector selects one of the input circuits and one digital signal of others of the input circuits is changed, the selector does not select another of the input circuits.
Claims7
A semiconductor device comprising:
- a plurality of input circuits each of which receives one of an analog signal and a digital signal, the input circuits being supplied a power supply;
- a selector that selects one of the input circuits;
- an analog-to-digital (AD) converter that performs AD conversion of an analog signal input to the selected input circuit,
- wherein after the selector selects one of the input circuits, the selector selects another of the input circuits, and
- wherein when the selector selects one of the input circuits and one digital signal of others of the input circuits is changed, the selector does not select another of the input circuits;
- and
- an edge detection circuit that detects a change of the digital signal.
A semiconductor device comprising:
- a plurality of input circuits each of which receives one of an analog signal and a digital signal, the input circuits being supplied a power supply;
- a selector that selects one of the input circuits;
- an analog-to-digital (AD) converter that performs AD conversion of an analog signal input to the selected input circuit,
- wherein after the selector selects one of the input circuit, the selector selects another of the input circuits, and
- wherein when the selector selects one of the input circuits and one digital signal of others of the input circuits is changed, the selector does not select another of the input circuits;
- and
- a timer that measures a period during when one of the input circuits is unselected.
A semiconductor device comprising:
- a plurality of input circuits each of which receives one of an analog signal and a digital signal, the input circuits being supplied a power supply;
- a selector that selects one of the input circuits;
- an analog-to-digital (AD) converter that performs AD conversion of an analog signal input to the selected input circuit,
- wherein after the selector selects one of the input circuits, the selector selects another of the input circuits, and
- wherein when the selector selects one of the input circuits and one digital signal of others of the input circuits is changed, the selector does not select another of the input circuits;
- and
- wherein each of the input circuits includes a logic circuit which activates a digital signal input thereto.
Dependencies are inferred from the claim text.