MOD-16 ripple counter each frequency divider counter circuit diagram

Photocoupler

A counter that drives a counting element through a transmission mechanism to indicate the device to which the accumulated value is measured. Counting is one of the simplest basic operations. The counter is the logic circuit that implements this kind of operation. The counter mainly counts the number of pulses in the digital system to realize the functions of measurement, counting and control, and also has frequency division. Function, the counter is composed of a basic counting unit and some control gates. The counting unit is composed of a series of triggers with functions of storing information. These triggers include RS trigger, T flip-flop, D flip-flop and JK. Triggers, etc.