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Example NAND

Behavior

The NAND gate outputs the result of the NAND operation of the 1-bit signals at the input. The output has the value 0 only if all inputs have the value 1.

Unconnected inputs always have the value 0.

Table 1. truth table
0 1 Z X

0

1

1

1

1

1

1

0

1

X

Z

1

1

1

X

X

1

X

X

X

(Z: Undefined/High impedance, X: Error)

Mnemonics

The logical gates of Antares can illustrate their function with so-called "mnemonics". See the chapter Descriptions and explanations. Below is the mnemonic of the NAND gate.

Example Mnemonic

Pins

Inputs

The 1-bit inputs of the NAND gate. Their number is determined by the attribute "Number of inputs".

Output

The 1-bit output of the NAND gate. Outputs the value of the calculated NAND function.

Attributes

Orientation

The direction in which the output points.

Number of inputs

Determines how many inputs the NAND has. There are 2 to max. 8 inputs available. If the NAND gate is already connected to wires, this attribute cannot be changed.

Output Name

The optional name displayed next to the output. This can be useful when the NAND gate forms the end of a complex combinatorial circuit and the logical expression produced by the NAND gate needs to be specified.