Appearance

Example NOR

Behavior

The NOR gate outputs the result of the NOR function of the 1-bit signals at the input. The output has the value 1 only if all inputs have the value 0.

Disconnected inputs always have the value 0.

Table 1. truth table
0 1 Z X

0

1

0

1

X

1

0

0

0

0

Z

1

0

1

X

X**

X

0

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 NOR gate.

Example Mnemonic

Pins

Inputs

The 1-bit inputs of the NOR gate. Their number is determined by the attribute "Number of inputs".

Output

The 1-bit output of the NOR gate. Outputs the value of the calculated NOR function.

Attributes

Orientation

The direction in which the output points.

Number of inputs

Determines how many inputs the NOR gate has. There are 2 to max. 8 inputs available. If the NOR 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 NOR gate is the end of a complex combinatorial circuit and the logical expression produced by the NOR gate needs to be specified.