What is the 555 timer?

and 555 Timer is a type of integrated circuit, also known as a chip that is very popular for different purposes. Its main use is a timer, but can also be used as a multivibrator. The first model was formally known as SE555/Ne555 and sold as an IC time machine. At the time of 1971, the timer 555 was the only commercially available timer circuit. Today there are many different models from different companies, although almost all manufacturers include 555 as part of the model number, because it is such a recognizable name. The most common is the "V" rectangular package, which has four pins on each side. The second version, which used to be the most common, but now it fell somewhat somewhat, is a circular package "T".

Eight Carry Pins from the following features:

soil that acts as safety measures as for electric plugs

trigger that transmits tension and starts the timefare operationsrye

output that transmits the voltage to the device using the timer

Reset that is used to end the timing operation

control voltage, optional pin used to control the timer from the external setting of the main circuit

threshold that determines how long the voltage voltage timer in each cycle on/off - other words should be how long the timing interval should be

discharge, connected to a capacitor that also affects the timing interval

V+, which is voltage input

There are three different types of use for timer 555. The monostable operation is when the output signal simply switches between the starting position and the temporary position in the regular intervals that are most commonly used for timers. The Astable operation is when the output voltage rises and falls into the set, which makes it an oscillator. Because the formula can change, it can be used for any purpose that requires a specific tone pattern. Bistable operation is whenThe signal can be held in one of two positions, which means that the 555 timer can act as the smallest possible computer memory unit.

There are several products that are derived from a 555 timer. 556 combines two 555 timers on one chip, while the 558 combines four 555 timers on one chip, albeit with some adjustment. 7555 is an extremely low -energy version of the timer 555.