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  • Author Author: cstanton
  • Date Created: 1 Apr 2022 2:21 PM Date Created
  • Last Updated Last Updated: 14 Nov 2023 9:31 PM
  • Views 7982 views
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  • Comments 4 comments
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The Fundamentals of 555 Timers - eBook

555 Timers

Introducing the Fundamentals of 555 Timers eBook

555 timers are everywhere in the world of electronics. Billions of them have been made, and they are still being manufactured. They can be used in flashing lights or beeping prank devices, security trip alarms, making the Knight Rider sweeping light, music synthesizers, and even traffic light control systems. All of these are demonstrated in my tutorial book, “Essential 555 IC: Design, Configure, and Create Clever Circuits.” Make those projects in the book, and you’ll have a grasp of just how versatile that integrated circuit can be. This eBook starts by going over the very basics through to their functions, applications and modes.

Learn More about the Fundamentals of 555 Timers by downloading the eBook:

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Top Comments

  • beacon_dave
    beacon_dave over 3 years ago +1
    Not sure this is worded correctly ? "In astable mode, the 555 timer acts as an oscillator, generating a square wave. The frequency is adjusted by changing the values of two resistors and a capacitor…
  • cstanton
    cstanton over 2 years ago in reply to paul-j-otanwa

    Depends on your citation style/method.

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  • paul-j-otanwa
    paul-j-otanwa over 3 years ago

    Thanks. Please I want to cite your work in my project. Author as community 14? Date is April 2033? What of the publisher? Thanks 

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  • colporteur
    colporteur over 3 years ago

    I wasn't aware that three 5K resistors forming a voltage reference ladder on the inside was how the chip got its name. I just finished some work for the local library and they agreed to purchase the book in lew of payment. I'm thinking there may be some circuit ideas to replace what I do with Arduino Nano's at the moment. Looking forward to my new bathroom reader. 

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  • beacon_dave
    beacon_dave over 3 years ago

    Not sure this is worded correctly ? 

    "In astable mode, the 555 timer acts as an oscillator, generating a square wave. The frequency is adjusted by
    changing the values of two resistors and a capacitor, ranging from a low of 500 kHz to a maximum of 2 MHz."

    I doubt you'd notice a LED flashing at 500kHz.

    Should it not read more like '...ranging from a low of ... to a maximum of 500kHz to 2MHz.' ? 

    One TI datasheet suggests timing range of <1mHz to 100kHz and shows typical values for 0.1Hz to 100kHz in free-running mode.  

    image

    https://www.ti.com/lit/ds/symlink/ne555.pdf

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