That part number is for a part originally made by Exar. The company does not exist anymore and there were seldom any second sources for these parts. eBay is your best bet for the XR2240.Ok thank you. So do you know where i could find a xr2240 programmable timer or something similar because all the places I've looked at online don't carry them?
One more time with feeling. A CD4040 or a CD4060 are similar and available in today's market. Do I have to repeat myself or did the message get through?....
Does anyone know if there is something similar available in today's market?
Exar would probably be surprised to find that they do not exist.That part number is for a part originally made by Exar. The company does not exist anymore and there were seldom any second sources for these parts. eBay is your best bet for the XR2240.
A CD4040 or CD4060 may get you what you want.
"Reports of my demise have been greatly exaggerated!"Exar would probably be surprised to find that they do not exist.
Why didn't I think of that?"Reports of my demise have been greatly exaggerated!"
---- Samuel Clemens (aka Mark Twain)
I know, thats why I use the 4060.One more time with feeling. A CD4040 or a CD4060 are similar and available in today's market. Do I have to repeat myself or did the message get through?
BTW I'm amazed that LM (National Semiconductor) and UA (Fairchild) second sourced this part. Given the age of the datasheet from National (1990), I'd be surprised if they corresponded to orderable parts. Digi-Key has none.
It is the same name, but it sure looks like a different company, with no archival information on its legacy products, and new products with prefixes different than 'XR'. Are you sure that it did not go away for a while until someone resurected the name, Phoenix like, from the ashes.Exar would probably be surprised to find that they do not exist.
You are right about the fact that they don't make the cool old parts now.
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