The is a member of the Series CMOS range, and contains four independent NAND gates, each with two inputs. The pinout diagram, given on the. NAND Gate, CD, 2 Input, mA, 3 V to 18 V, DIP with direct implementation of the NAND function and supplement the existing family of CMOS gates. Texas Instruments CDBE CD – CMOS Quad 2-Input NAND Gate (Pack of 5): : Industrial & Scientific.

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The diodes at the input protection of Cmos gates clamps the input voltage to 0. The circuit supply voltage is 12v. Quote of the day.

Your oscillator has both inputs of the gates shorted together. The absolute max supply for a high speed 74HC is 7V and they recommed a max of 6V.

You May Also Like: Aug 5, 1. Discussion in ‘ General Electronics Chat ‘ started by smartyramAug 5, NAND gate oscillator frequency calculation Posted by ukiceman in forum: Dec 20, 10, 1, A CD will not blow up unless you connect nannd power supply backwards.


NAND Gate Oscillator using CD | All About Circuits

Aug 6, 7. The datasheets of Cmos gates shows that they switch their output in only 50ns 0. Your Yenka sim software doesn’t know if it is coming or going.

You might get better results with a different arrangement of the RC components – http: If only one input is used and the spare input is connected to the positive supply voltage then the output will be cmso symmetrical.

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Aug 6, 5. Apr 20, 15, Feb 17, 4, 1, Why do you use a very high value resistor 1M feeding the oscillator to the counter’s clock input?

4011 Quad 2-in NAND Gate CMOS IC

Aug 7, You get oscillator and counter in one. Your simulation sofware is also wrong when it shows the very slow switching ramps 0. The 1M resistor between the oscillator and counter is not required and might stop the circuit from working because it will combine with stray capacitance between wires and cause the square-wave from cc4011 oscillator to be a triangle-wave at the clock input of the counter.


May 11, I have created the following image attached NAND gate oscillator using 2 gates. The wave is not exactly square in shape. Aug 6, 9. Is it good enough to run a binary counter?

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Hi beenthere, I have made a new circuit. The resistor is not needed if the ICs use the same power supply voltage. I still notice the output in the simulator is same. Aug 5, 17 2. Maybe it will be simpler to use