Double Diode Protection on All Inputs? Maximum Ratings are those values beyond which damage to the device may occur. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high—impedance circuit. Unused inputs must always be tied to an appropriate logic voltage level e. Unused outputs must be left open. See Note 1.
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Propagation Delay Time: ns Hysteresis voltage: 0. It has 6 inverted Schmitt triggers inside it. A Schmitt trigger is used to avoid the problem of hysteresis. It can also be used as a logic inverter if needed. A Schmitt trigger is also useful for de-bouncing a push button or other noisy input devices.
So if you are looking for an IC which can help you to get of switching noise or to create sharp square wave signals based on an input signal then this IC could be the right choice or you.
The simplified internal structure can be given as below. Each of these 6 gates can be used individually based on our application. Since the gates are inverting we can also combine two gates to form a non-inverting gate. The input signal can be a noise square wave or any signal wave that oscillates between the low and high hysteresis voltage.
The unique and special functionality of a Schmitt trigger is to toggle the output based on the input signal without any noise. This is achieved by using a hysteresis band inside which no switching takes place. Switching Time Test Circuit and Waveform is given below:.