How a 555 Timer IC Works

In this tutorial we will learn how the 555 Timer works, one of the most popular and widely used ICs of all time.

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[tubegor]

This year 555 Timer is celebrating its 50th birthday, my congratulations. Half a century in electronics is all eternity.

Explaining how it works great done. 👍(ツ)❤️

[insertusername]

Finally someone explain that the capacitor is the key for changing the output state in the astable mode, other videos just throw formulas at your face and just skip the key of the thing with some "you just suppose to know that" vibes, what a shame.
Appreciate it!

[Dakseru]

This actually made me feel like I understand electronics and will allow me to understand what pins what and what the 555 does and how it does it for my A level studies, thanks a lot!

[hoofheartedicemelted]

I had to slow the playback to 0.75 and it gave me a greater amount of time to absorb this information. I'm a noob. But this stuff is fascinating, I can't think of any other word for it. Sir you are an excellent teacher. Thank you.

[kevinbyrne]

Although I was already familiar with the 555 timer IC, I liked your presentation. Clear and concise.
Also, congratulations on your English. I wish that I could speak a second language as well as you do.

[NicStage]

This is the best description of a 555 timer I've found so far. I'm learning this stuff and your video was really helpful. Thanks!

[WhoWantsToKnow]

Absolutely beautiful explanation of a 555, the best I have seen so far. I'm very glad I came across your channel!
I also made a flip-flop with NPN transistors in a NAND configuration, that was fun :)

[new-knowledge]

HOLY CRAP. The 555 timer is still around ! Amazing. I was using it about 44 years ago.

[stephenwilliams]

Every" band " needs a drummer. ( 555) And this is good way to" educate " folks tks for the Good show.

[curiosity]

Graphics make it explain better. Thank you for such a useful video!

[ragaming]

Excellent explanation of the 555. I usually prefer still images/text over video, but in this case the video and the animations were fantastic and really make clear how the device works. Also loved seeing the block diagram of the actual schematic with the different parts highlighted.

[knowall]

Though, as a rookie, I didn't fully understand the video, I give the video a perfect 10. I have to come back to your site again and again, as my knowledge picks up. Subscribed already. Thanks.

[maffysdad]

That was one of the best 555 tutorials I've seen in ages, and the graphics both on the chip and at the right side made all the difference to helping understand it... Thank you so much!

[claytonbenignus]

I am going to review this video several times. I would also like to see him do the LM386 Chip.

[calyodelphi]

I have to sya, this explanation of how the 555 timer works is beautifully done. It's simple and clearly illustrates what's happening internally. I definitely learned a lot more with this than I did in previous 555 timer videos by other EE youtubers. <3

One question begs to be answered, though. Where do some of those constants come from in the formulas?

[JohnLeePettimoreIII]

I've admired and used the 555 (556, and 558) for decades. Your video was very well made. Thank you.

[akashrenigme]

Slow and a kid can understand with a explanation like this. For the channel creator : students shall appreciate if you could continue this

[MaxImagination]

Well-explained in a concise and understandable manner. Thanks to you I built a much clearer understanding of the 555 timer and how it works. Excited to make more NE555 projects without my usual hiccups in lack of knowledge. Cheers to you, man!

[NicleT]

Best explanation on the 555 timer to date.

Thank you so much. This channel is one of the Internet’s gem.

[rpsproject]

That is the best explanation of the 555 that I have seen yet.