NE555N vs NE555P

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Wendy

Joined Mar 24, 2008
22,177
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.
 

nerdegutta

Joined Dec 15, 2009
2,676
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
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. :)
 

nerdegutta

Joined Dec 15, 2009
2,676
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?
 
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