8 To 1 Multiplexer Using 4 To 1 And 2 To 1. A multiplexer is a device that can transmit several digital signals on one line by selecting certain switches. The block diagram of 1x16 de multiplexer using lower order multiplexers is shown in the following figure.
For simplicity the 8 1 mux can also be implemented using 2 1 or 4 1 multiplexers. The other selection line s 3 is applied. Logic diagram for 8 1 mux you can observe that the input signals are d0 d1 d2 d3 d4 d5 d6 d7 s0 s1 s2 and the output signal is out.
Some of the available multiplexer ics include 74157 2 to 1 mux 78158 2 to 1 mux 74352 4 to 1 mux 74153 4 to 1 mux 74152 8 to 1 mux and 74150 16 to 1 mux.
1 8. Let us derive the four inputs of 4. The common selection lines s 2 s 1 s 0 are applied to both 1x8 de multiplexers. A multiplexer is a device that can transmit several digital signals on one line by selecting certain switches.
