555 Timer Based Binary Counter Circuit

Here is another circuit using 555 timer IC as an ASTABLE MULTIVIBRATOR. This circuit makes an LED blink for every half second, and the square wave output of 555 IC is connected to a BINARY counter of 8bit (74HC4040).  Each time when a pulse is generated by timer, binary counter counts it and stores the value. More about the working of this circuit is discussed in subsequent sections.

Schematic of this circuit:

Source: Binary Counter, For more such circuits, visit our Electronics Circuits section.