Demultiplexer (Digital)
Operator Menu Location: Signal Switching
Operator Bitmap:
Â
Functional Description:
The Demultiplexer operator passes its digital input signal to one of its eight digital outputs. The digital output that passes the digital input is determined by the state of the three digital inputs, as shown in the table below:
b2 |
b1 |
b0 |
Selected Output |
LOW |
LOW |
LOW |
x0 = IN |
LOW |
LOW |
HIGH |
x1 = IN |
LOW |
HIGH |
LOW |
x2 = IN |
LOW |
HIGH |
HIGH |
x3 = IN |
HIGH |
LOW |
LOW |
x4Â = IN |
HIGH |
LOW |
HIGH |
x5 = IN |
HIGH |
HIGH |
LOW |
x6 = IN |
HIGH |
HIGH |
HIGH |
x7 = IN |
In the table, x0-x7 represent the digital output signals, IN represents the digital input signal, and b0-b2 are the digital selector inputs. The outputs that are not selected are set to LOW, i.e., , where î is the index of the selected signal.
Design Pad will issue an error if the input pin is not connected.
User-Defined Properties:
Object Name. A string label that identifies the operator
Comments: None.
See Also:
Multiplexer (Digital), Demultiplexer (Analog), Multiplexer (Analog)