Schmitt NAND gate

If either input on the Schmitt NAND gate is '0', the output will be '1'.

The voltage threshold levels on each input depend on whether the input is rising or falling. (Above the threshold level the input voltage is recognised as binary '1'; below the threshold level it is recognised as binary '0'.)

Truth table:

Tips for use:

• The Schmitt trigger action of the inputs makes this part useful for interfacing logic and analogue signals.

See also:

• Logic family parts
• Simulation of Digital ICs
• NAND gate
• Using electronics parts