The 555 IC Timer

The 555 IC Timer   INTRODUCTION One of the most versatile linear ICs is the 555 timer which was introduced in early 1970 by Signetic Corporation. The 555 is a monolithic timing circuit. It can produce accurate and highly stable time delays or osscilations. It got its name because of its three 5kΩ resistors which is used in its voltage divider network. It is very much reliable , cheaper in cost and easy to use. APPLICATION Monostable and Astable Multivibrator Waveform generator Temperature measurement Digital logic probes Analog frequency meter and tachnometer  Dc-Dc converter Signetic Corporation gives the name SE/NE 555 timer. SE 555  is designed so such that for the operating temprature ranging from -55℃ to 125℃ whereas NE 555 ranges from 0℃ to 70℃. The important feature of 555 timer is that it operates from wide range of power supplies which is +5V to 18V supply voltage. Mono stable Mode: It can produce accurate time delays from microseconds to h...