This IC will increment the count from 0 to 9 (Q0 to Q9) each time it senses a high pulse from the clock pin (pin 14). So we need a clock source to keep this IC ticking, this clock source can be a simple Timer circuit that could generate pulse or a microcontroller like Arduino, PIC etc to generate our custom pulse using I/O pins. package include : 1x 28 Pin DIP IC Socket-Base-Connector Category: IC's