Used in a variety of timer, pulse generation, and oscillator applications, the 555 was designed in 1971 by Hans Camenzind. A favorite for many engineers, ...

The design specification called for low duty cycle, that is, time on divided by total time was to be less than 50%. I recalled this EDN Design Ideas article, which shows how to design a 555 circuit ...

Do these modern takes on the classic timer IC give you any ideas for new applications, or improvements to an existing 555 hack? Can you make a faster one? Let us know in the comments.

Now as an adult, he decided to go through the 555 Timer IC Circuits Mini-Notebook, full of example circuits and explanations, all in Mims’ trademark handwritten style, and build all the circuits ...

What you’ll learn: The history of the 555 timer. What are the 555's modes of operation? About my book to help teach those young and old about 555 timers. element14’s 555 timer contest.

The bipolar NE555 timer IC is widely used in inductorless dc-dc converters, most frequently in doubling and inverting converters. However, another very popular IC, the LM386 audio ...