A logic circuit, usually an integrated circuit, that is capable of setting one of its 2n output lines active, i.e. at logic 1, in response to an n-bit binary code present at its input. For an n-bit device, 2n distinct elements of a code can be input.
A decoder/demultiplexer may be considered as a switch that directs data from a time-shared data bus to one of several possible outputs under the control of a select signal, which is normally digital; the select signal indicates which of the outputs is to be connected to the input (see diagram). Individual data channels may be recovered from a time-division multiplexed input bus provided that the scanning of the select signal is made synchronous with that of the multiplexer. The input to and outputs from a decoder/demultiplexer may be in digital or analogue form. See also data selector/multiplexer.
Decoder/demultiplexer.
- Deacon process
- deactivation
- dead
- dead band
- deadbeat
- dead-beat instrument
- dead cat bounce
- dead cliff
- dead end
- dead ice
- dead-leg
- dead link
- deadlock
- deadly embrace
- Dead Sea Scrolls
- dead time
- dead tree
- deadweight burden of taxes
- deadweight debt
- deadweight loss
- de-aeration
- Deakin, Alfred (1856–1919)
- dealing
- dealkylation process
- deamination