NE555N vs NE555P

Discussion in 'General Electronics Chat' started by lefam, Dec 13, 2010.

  1. lefam

    Thread Starter Member

    Nov 30, 2010
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    Is there any difference between NE555N and NE555P integrated circuits? The pinout is the same?
     
  2. Wendy

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    Mar 24, 2008
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    Have you looked at the datasheets? That is where the answers lie...

    http://datasheet.octopart.com/NE555N-STMicroelectronics-datasheet-503160.pdf

    http://datasheet.octopart.com/NE555P-Texas-Instruments-datasheet-148786.pdf

    From what I can see it is mostly the manufacturer. They are virtually identical other than that.

    Any chip that is of the 555 family will have the same pinouts, though not necessarily the same specs. CMOS 555's (such as the TI TLC555 sold by Radio Shack, or the 7555) have dramatically different specs, but the same pinout. Many cases they can be drop in replacements. CMOS 555s have much wider power supply ranges, much less drive, and draw much less current.
     
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  3. iONic

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    +1 Bill. You beat me to the punch.
     
  4. Kermit2

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  5. Wendy

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    Hey, it was a 555 question.

    My job here done, I can now go to bed (3rd shifter).
     
  6. lefam

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    Nov 30, 2010
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    Thanks a lot (I have just made my first 555 LED flasher).
     
  7. Wendy

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  8. lefam

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    Nov 30, 2010
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    Ok. I will read the articles.
     
  9. R!f@@

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    Apr 2, 2009
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    Every body should know by now that if a post has 555 then it is for bill.

    everyone else should read along rather than posting
     
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  10. nerdegutta

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    Dec 15, 2009
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    Yep. Agreed. Mr. Bill "555" Marsden. Maybe forum moderators could add a button on the top menu, labeled "555", and this extracted all posts containing the phrase "timer" and "555". Would make Mr. Marsdens day much easier. All post handed on a silver plate.

    BTW: I have learned a lot from his blog! Thanks. :)
     
  11. R!f@@

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    Yes....mod shud give him a new category.

    I vote for 555
     
  12. Wendy

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    Are you kidding, Wookie still shows me something new tricks now and again. Have them bookmarked too.
     
  13. R!f@@

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    Wookie's after you....:confused: ?
     
  14. Wendy

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    I would put Wookie in front personally.
     
  15. nerdegutta

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    Okay, new category: SgtBill? :) (Now the Sarge is in front, :D)

    Perhaps Sgt555?

    Or just plain 555
     
  16. Wendy

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    Actually my current classification is much cooler IMO.
     
  17. R!f@@

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    HAH! :D I go for SgtBill 555
     
  18. R!f@@

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    Noooooooooo! that won't do.

    IMO ..it shud be like.... say..... 555 Guy or Dial 555 Bill
     
  19. nerdegutta

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    Dec 15, 2009
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    With all respect to sgtWookie. (I have been wondering if it is really him in his avatar picture. And if he has left military career... The language he uses reminds me of a strict, structured and determined man, Oh well..)

    Master drill sergeant Bill "the 555 guru" Marsden.

    With no offense...

    What does IMO mean?
     
  20. R!f@@

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    Apr 2, 2009
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    IMO...........in my opinion....
    IMHO........in my humble opinion...

    I like the "555 Guru"
     
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