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  • RC debouncer circuit does not work - Electrical Engineering Stack Exchange
    This doesn't answer the asked question It surely can work without Schmitt Trigger And the original circuit did not work because the resistances are completely unsuitable for LS TTL So in your circuit with non-LS TTL Your circuit on the right likely won't work either with 10k pull-down and 7414 TTL IC
  • integrated circuit - Electrical Engineering Stack Exchange
    I am following an online tutorial It needs Hex Schmitt Trigger Inverter IC (74C14 ) but I can't find it anywhere Instead, I can see CD40106BE Inverter, Schmitt Trigger, CD40106, 1 Input, 3V to 18
  • digital logic - Electrical Engineering Stack Exchange
    My teacher asked for us (max until next 5 days) to tell her: General details about this IC (7414), Its features and benefits, Its application, Its important electrical characteristics, and everything
  • Encoders debouncing with 7414 at 3. 3V - Electrical Engineering Stack . . .
    I'm trying to make a small module that has 2 rotary encoders (both have build-in push buttons), hardware debouncing circuit and have to be compatible with both 5 0V and 3 3V microcontroller logic i
  • switches - Electrical Engineering Stack Exchange
    You have chosen the SN7414 If you look at the schematic in the data sheet page 3, you will see that internally there is a 6K ohm resistor tied high to Vcc and then through a diode to the input pin A of the 7414 So your capacitor is being charged up by the input from the 7414 Either use the 74AHCT14 (or equivelant) or reduce your resistors to values low enough that your resistors can soak up
  • ttl - Hardware debouncing using 74LS14 - Electrical Engineering Stack . . .
    TTL inputs source current when driven with a logic low So as Solomon comments you must pull current from the input to ensure that the input goes low enough in voltage for it to be seen as a logic low A resistor that is too high in value will not do this The 74LS14 typically requires a maximum of 0 4mA when held low, which would cause about 400mV across the 10kohm input resistor Are you
  • How do I properly import a . lib description into a LTspice symbol?
    You will need to provide the exact SUBCKT (You can, and probably should, test it out first by simply pasting it into the LTspice schematic rather than saving it into a file But that's a different problem for a different time ) Also, you need to provide the complete ASY file for your saved symbol Don't leave anything out! Everything matters
  • inverter - RC deadtime circuit AND gate selection - Electrical . . .
    I am making a deadtime circuit proposed by Verbal Kint and I ran into an issue where the AND gate I'm using is only giving logic level signals Is there an AND gate buffer anyone could recommend to
  • In a 74HC14 Schmitt trigger IC, unused inputs outpus
    I have a 74HC14 Schmitt trigger IC I only use one of its I O pairs, and everything else is not used I understand that in TTL logic the unused inputs should be set to either high or low to prevent
  • BJT ring oscillator - Electrical Engineering Stack Exchange
    I would like to build a ring oscillator with a BJT but the waveforms do not look correct currently, I am using the following circuit: My question is how do I control the frequency while at the same





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