5.3.4. Counter chips

During different realizations, for example, Pong game, we will use different types of counters. The first one is a 74161 synchronous counter that can be programmed to count from any preset value. The following figure shows its internal organization and pin configuration that should be consulted in the datasheet.

Figure 5‑25 Chip 74161

Further, we will use 7490 and 7493 chips, very powerful decade and binary asynchronous counters.

Figure 5‑26 Chips 7490 and 7493
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