3.3.2. 74153 Multiplexer chip

In the context of building a Pong game, we are going to need a 4-1 multiplexer, in order to distinguish the scores of two players. For that purpose, we can use a TTL chip 74153 which consists of 2 4-1 multiplexers. The connection diagram in the following figure is self-explanatory. The function table clearly shows how strobe G must be low to enable the output. Combination of A and B inputs, select one of C0, C1, C2, and C3 outputs.

Figure 3‑16 Chip 74153

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