Introduction to 555 Timer

555 Timer
   555 Timer is an integrated circuit used for a variety of Timer Applications. It is used for the timer, pulse generation, and oscillator applications. 555 timer was introduced by the signetics in 1972.
it is the most popular Integrated Circuit ever manufactured. 

Depending on the manufacturer, the standard 555 package includes 25 transistors, 2 diodes and 15 resistors on a silicon chip installed in an 8-pin dual in-line package (DIP-8).

555 timer ic comes as NE555 or SE555 these are the temperature designations for the ICs, where NE555 is for commercial temperature range and SE555 is for military temperature range.
commercial temperature ranges from 0 to 70 degree and military temperature ranges from -55 to +125 degrees.

Features of 555 timer IC -

  • It operates over the voltage range of +5 volts to +18 volts.
  • Good temperature stability.
  • High output current.
  • Output can source or sink current to 200 ma.
  • Output And Supply Are TTL compatible.

Pin Diagram Of 555 Timer IC-

The following figure shows the pin diagram of 555 timer IC.


 the above figure shows the pin diagram of 555 timer IC it consists of 8 pins.

Block diagram of  555 Timer IC -

     


Important Links-



Introduction to 555 Timer Introduction to  555 Timer Reviewed by Majid pathan on December 13, 2017 Rating: 5

1 comment:

  1. Very interesting post, thank you! It almost seems easy when you present it like that... Do you provide PCB Services to individuals?

    ReplyDelete

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