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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CD4011 – Quad 2-In NAND Gate
The circuit supply voltage is 12v. Your oscillator has both inputs of the gates shorted together.
Do you already have an account? Why do you use a very high value resistor 1M feeding the oscillator to the counter’s clock input? The datasheets of Cmos gates shows that they switch their output in only 50ns 0.
May 11, Your cd0411 sofware is also wrong when it shows the very slow switching ramps 0. Dec 20, 10, 1, Maybe it will be simpler to use Apr 20, 15, A CD will not blow up unless you connect the power supply backwards. Would appreciate any feedback from you?
Is it good enough to run a binary counter? Aug 6, 5. No, create an account now.
I still notice the output in the simulator is same. Hi beenthere, I have made a new circuit.
If only one input is used and the spare input is connected to the positive supply voltage then the output will be more symmetrical. I have created the following image attached NAND gate oscillator using 2 gates. Yes, my password is: The resistor is not needed nannd the ICs use the same power supply voltage.
Aug 6, 8. Aug 6, 4. Aug 7, NAND gate oscillator frequency calculation Posted by ukiceman in forum: Quote of the day. Aug 6, 6. Aug 6, Aug 5, 3. The wave is not exactly square in shape. The diodes at the input protection of Cmos gates clamps the input voltage to 0. You get oscillator and counter in one. The absolute max supply for a high speed 74HC is 7V and they recommed a max of 6V.
A Beginner’s Guide To The Cmos
What is wrong in this circuit? Your simulation software is wrong because it shows the input going 4V higher than the positive supply and 4V below ground. Aug 5, 2. I read about input protection http: Your SIM program ckos know that the input of Cmos gates have input protection diodes that limit the input voltage to plus and minus 0.