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Libraries Guide
Chapter 4: Design Elements (CAPTURE_SPARTAN2 to DECODE64)

D4_16E

4- to 16-Line Decoder/Demultiplexer with Enable

XC3000
XC4000E
XC4000X
XC5200
XC9000
Spartan
SpartanXL
Spartan2
Virtex
Macro
Macro
Macro
Macro
Macro
Macro
Macro
Macro
Macro

When the enable (EN) input of the D4_16E decoder/demultiplexer is High, one of 16 active-High outputs (D15 - D0) is selected with a 4-bit binary address (A3 - A0) input. The non-selected outputs are Low. Also, when the EN input is Low, all outputs are Low. In demultiplexer applications, the EN input is the data input.

Refer to the “D3_8E” section for a representative truth table derivation.

Figure 4.56 D4_16E Implementation XC3000, XC4000E, XC4000X, XC5200, XC9000, Spartan, SpartanXL, Spartan2, Virtex