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The MC74HC4538A is identical in pinout to the MC14538B. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.This dual monostable multivibrator may be triggered by either the positive or the negative edge of an input pulse, an..

The 74LS121 is a monostable Multi-vibrator with Schmitt-trigger inputs that features dual negative-transition-triggered inputs and a single positive-transition-triggered input which can be used as an inhibit input. The 74LS121 IC has a wide range of working voltage, a wide range of working condition..