| 摘要 |
PURPOSE:To make an exclusive OR circuit inactivated by connecting a connection terminal of an externally mounted capacitor deciding a delay time of a delay pulse to common in an IC circuit integrating the exclusive OR gate circuit and a circuit inputting a non-delay pulse and the delay pulse to the exclusive OR circuit. CONSTITUTION:An edge pulse generating circuit 11 is integrated as an IC circuit 13 consisting of the exclusive OR gate circuit 15 comprising a double differential amplifier circuit having an analog multiplication function and the circuit inputting the non-delay circuit and the delay pulse to the circuit 15. Thus, the supply of the non-delay pulse and the delay pulse to the exclusive OR gate circuit 15 is interrupted by connecting the connecting terminal 16 to connect the externally mounted capacitor C for forming a time constant circuit 14a for the delay pulse to common. Then the circuit selection in the IC circuit 13 is attained by changing the connection of only one connection terminal. |
