| 摘要 |
PURPOSE:To perform initial reset even at the application of electric power and the instantaneous reduction of power voltage by providing said circuit with a circuit generating a reset signal after a prescribed time from the application of electric power and a circuit generating a reset signal in accordance with the instantaneous reduction of power voltage. CONSTITUTION:The 1st reset signal generating circuit consists of an integration circuit 1 and a Schmitt trigger circuit 8 included in the integration circuit 1 and generates an initial reset signal after a prescribed delay time from the rise of power voltage. The 2nd reset signal generating circuit 12 is a monostable multivibrator which operates in accordance with a result detected by an instantaneous power voltage reduction detecting circuit 11 and generates an initial reset signal at the instantaneous reduction of power voltage. |
