555 Timer. Numerous companies have made the original bipolar timers and similar low power cmos timers too. Due to its relative simplicity ease of use and low cost it has been used in literally thousands of applications and is still widely available.
Woman holding a disc the 555 timer takes its name from the fact that the original model had three resistors each rated at five thousand ohms. The 555 timer is a commonly used ic designed to produce a variety of output waveforms with the addition of an external rc network we have seen that multivibrators and cmos oscillators can be easily constructed from discrete components to produce relaxation oscillators for generating basic square wave output waveforms. By wiring the 555 timer with resistors and capacitors in various ways you can get it to operate in three different modes.
The lm555 is a highly stable device for generating 1 direct replacement for se555 ne555 accurate time delays or oscillation.
Its name is derived from three 5k ohm resistors connected in series used in it the timer ic can produce required waveform accurately. By wiring the 555 timer with resistors and capacitors in various ways you can get it to operate in three different modes. The 555 timer is a simple integrated circuit that can be used to make many different electronic circuits. The 555 timer was introduced over 40 years ago.
