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Logic Circuits Using NAND Gates

Discover practical examples of logic circuits built entirely with NAND gates. The gallery below showcases a 2-to-1 multiplexer, half adder, SR latch, and ring oscillator—all constructed using only NAND gates. NAND gates are universal, meaning any digital logic circuit can be implemented using just NAND gates. These examples demonstrate fundamental building blocks used in digital electronics.

Standard IEEE Std 91/91a-1991Engine schematex-logicExport SVG · PNG · PDF
How to

How to use a logic gate diagram template.

  1. 01Select the NAND gate component

    Open the logic diagram editor and choose the NAND gate symbol from the component library.

  2. 02Arrange gates and connect inputs/outputs

    Place NAND gates on the canvas and draw wires to connect them according to your circuit design.

  3. 03Configure inputs and labels

    Add input pins, switches, or constant logic levels, and label your signals for clarity.

  4. 04Simulate the circuit

    Run the simulation to verify the logic operation and check for errors.

  5. 05Export or share

    Save your NAND logic circuit as an image or embed it in documentation.

FAQ

Questions about logic gate diagram templates

Why use only NAND gates to build logic circuits?

NAND gates are functionally complete, meaning any Boolean function can be implemented using only NAND gates. This simplifies circuit design and prototyping, and it’s common in integrated circuit manufacturing where a single gate type reduces complexity.

Can I simulate my NAND circuit before building it?

Yes, our interactive diagram tool includes a simulation mode that allows you to test your NAND logic circuit and verify its truth table.

What are some common NAND-only circuits?

Some fundamental NAND-only circuits include inverters, AND/OR gates, multiplexers, half/full adders, latches, and oscillators—all shown in our gallery.

How do I convert an AND gate to NAND gates?

An AND gate followed by a NOT gate is equivalent to a NAND gate. To implement AND using only NANDs, you feed the NAND output into another NAND configured as an inverter (both inputs tied together).

Is it possible to build an XOR gate using only NAND gates?

Yes, an XOR gate can be constructed from four NAND gates. You’ll find many reference schematics, and you can create one in our editor to see the connections.