Patent ID: 7372309

Claim:
A reset circuit comprising: a first circuit for outputting a signal indicating a reset when supply of a power supply voltage is applied until the power supply voltage reaches a sufficient value and indicating release of the reset after the power supply voltage reaches the sufficient value; a second circuit configured to be operable at a second stage of the first circuit, for outputting a signal obtained by delaying start of the indication of the release of the reset in the outputted signal of the first circuit by a time that the power supply voltage rises when the supply of the power supply voltage is applied; a momentary reset indication elimination circuit, configured to be operable at a second stage of the first circuit, for eliminating a momentary change indicating the reset in the outputted signal of the first circuit when the momentary change occurs in the output signal after the power supply voltage rises; and a selection circuit for selecting, as an output from the reset circuit an output signal of the second circuit when the supply of the power supply voltage is initiated and an output signal of the momentary reset indication elimination circuit after the power supply voltage rises.