MONOSTABLE MULTIVIBRATOR fabricated withsilicon gate C2MOS technology.There are two trigger inputs, A INPUT (negativeedge) and B INPUT (positive edge). These inputsare valid for slow rising/falling signals, (tr=tf=l sec).The device may also be triggered by using theCLR input (positive-edge) because of theSchmitt-trigger input; after triggering the outputmaintains the MONOSTABLE state for the timeperiod determined by the external resistor Rx andcapacitor Cx. When Cx > 10nF and Rx > 10KΩ,the output pulse width value is approsimativelygiven by the formula : tW(OUT) = K · Cx · Rx.(K ≅ 0.45).Taking CLR low breaks this MONOSTABLESTATE. If the next trigger pulse occurs during theMONOSTABLE period it makes theMONOSTABLE period longer. Limit for values ofCx and Rx : Cx : NO LIMITRx : Vcc < 3.0V 5KΩ to 1MΩ Vcc > 3.0V 1KΩ to 1MΩAll inputs are equipped with protection circuitsagainst static discharge and transient excessvoltage.
