The 555 timer IC is an integrated circuit used in a variety of timer, delay, pulse generation, and oscillator applications. It is one of the most popular timing ICs due to its flexibility and price.

Jun 4, 2021 · In this tutorial, you'll learn how to use the 555 timer to make useful projects to blink lights, create timing circuits, and make sound.

A typical application for the LM555 timer in monostable mode is to turn on an LED for a specific time duration. A pushbutton is used as the trigger to output a high pulse when trigger pin is pulsed low.

Jul 2, 2024 · The 555 timer IC is a very cheap, popular and useful precision timing device which can act as either a simple timer to generate single pulses or long time delays, or as a relaxation oscillator …

Learn the basics of 555 timers, what they are used for, and how to build monostable, bistable, and astable oscillators with the 555 timer.

Sep 22, 2025 · Learn how the NE555 timer works, datasheet, pinout, and basic stable multivibrator (Free-running) or square wave oscillator circuit.

Oct 18, 2025 · Learn how to use the 555 timer IC with simple 555 timer circuits, diagrams, and practical tips. Ideal for beginners starting with NE555 or 555 chip projects.

Nov 27, 2025 · 555 Timer IC provides time delay in circuits and here we discussed its pin diagram, various modes, working, circuits, and applications.

The 555 timer IC was first introduced around 1971 by the Signetics Corporation as the SE555/NE555 and was called "The IC Time Machine" and was also the very first and only commercial timer IC …

Dec 16, 2025 · This article explores the theoretical foundations of the 555 timer circuit — covering architecture, modes of operation, timing calculations, design considerations and cutting-edge …