555 Chip Pinout. Pin 1 ground gnd this pin is connected to circuit ground. This means it has 8 different pins each of which have different functions for the ic.
In the time delay mode of operation the time is precisely controlled by one external resistor and capacitor. The 555 timer ic is an integrated circuit chip used in a variety of timer delay pulse generation and oscillator applications. Ic timer ne555 belongs to a sort of popular and easy to use integrated chip commonly used for general purpose timing applications from 10 µs to hours or from 1mhz to 100 khz.
The 555 timer can be obtained very cheaply from pretty much any electronic retailer.
When you use it you need to be aware of the purpose of each of the eight pins in the 555 package. Pin 2 trigger tri. In 2017 it was said over a billion 555 timers are produced. The 555 timer is an 8 pin ic which is one of the most popular electronic devices used in industrial electronic circuits.
