A 63-bit counter composed of cascading and then presetting the number

63-base counter constructed by cascading first and then presetting: We can also use the cascading method to form a ¹⁰ⁱ counter or a 16i ^counter , and then use the preset number method to form an arbitrary base counter. For a 63-base counter, two 10-base counters (74LS160) can be used to form a 100-base counter, and then the preset number method can be used to implement a 63-base counter. Its counting state transition diagram is shown in Figure 9-2. It should be noted here that 74LS160 is a synchronous preset number function and has no transition state.

Figure 9-2 State transition diagram of a 63-base counter constructed by cascading first and then presetting the number