* Generador de pulso con un NOT Schmitt 74HC14. La histeresiste va a ayudar a evitar pulsos falsos, y la banda de operación lógica de un HC (mayor a un LS) ayuda a crear un efecto semejante a las 3 resistencia internas del LM555 (1/3Vc and 2/3Vc).
* Pulse generation with NOTs Schmitt 74HC14. The effect of hystresis helpt to avoid false pulses, and the working band of the HC (bigger than the LS) helps to create a similar effect of the 3 internal resitance of the LM555 (1/3Vc and 2/3Vc).
