We are redoing an 87C51FB design with the 87C51MC2, which is readilly available from DigiKey. The problem is, the -MC2 is an OTP part, and we have a lot of code development to do yet. This is going to kill off a lot of parts before the coding is finished. So, we identified a FLASH part for this, the AT89C51RE2SLSUM, a PLCC44 part, which should do the job nicely.
BUT, after a week of fruitless search, the -RE2 is proving nearly impossible to find. Even Atmel won't supply samples, they refer us to DigiKey. DKey doesn't have any, and they require a minimum order of hundreds, as does everyone else who doesn't have them in stock. We found one distributor who would sell us just two for a premium price, but they're stock is in Hong Kong, so charge $200 shipping! Another distributor will supply two or three, but they won't have any until mid-July!
So I come here in the hopes someone can either suggest a known source with stock in the US or who can sell us a couple out of their stock, right here, right now. We will pay a premium, of course, within reason.
Thanks for your attention, kenjj
Dear Kenjj,
Who is the distributor in Hong Kong of AT89C51RE2-SLSUM in stock? Thanks,
Lidio
Sorry, I can't say. I'm at home today and all the contact info is not at hand. Besides, I tossed all the previous search paperwork almost two weeks ago, which includes that info. The web searches I did found a couple of sites with thousands in stock.
I remember I contacted AERI.com (RFQ), and Arrow Electronics at (408) 453-1200. I have a note on my calender at work to call a salesmen in mid-July about a shipment they were expecting of these. He claimed (two weeks ago) they had 374 left to sell after deducting orders already placed. Just now I've tried a couple of Google searches and perused the Atmel distributor's info, and nothing jogs my memory that way. I'm back at work Sunday, and will try to find references to the search info. How many are you looking for?
Sorry I can't help just now. kenjj
Thanks for your reply.We are needing 250 units. After developing a new product during 3 years, we realize it was a bad choice component. We had some dificulties with AT89C51RE2-SLSUM it is true but we thought it would be resolved in time by ATMEL.
but we thought it would be resolved in time by ATMEL. the sad story is that you are the umpteenth that has thought so about Arghmel.
When they did me in long ago I decided for good never to use an Arghmel chip.
Erik
Hi. Here's the info I promised:
Arrow Electronics 800-833-3557 Matt x4046
I don't know where you are, so if the 800 number is no good for you, let me know and I'll get the direct number. I hope these guys still have the 374 available for your sake. These AREN'T the guys with stock in Hong Kong. I tried to recreate the search, but with no recognizable results. I may reverse engineer that name and number yet, so keep looking here.
BTW, what was the problem with this part that Atmel hasn't fixed, and what was your work around?
'Luck Ken Jennejohn
Ah! I believe it's these guys. I did a google search on "89C51RE2 distributors" and they popped up at the top:
1-Source Electronic Components www.1sourcecomponents.com/.../AT89C51RE2.htm 1-800-966-8826 These guys appear to be in the US. I remember contacting this group, among others. Their page shows they have several sources with this part in the hundreds and thousands. I also think they wanted $200 for shipping to the US! Ouch! Then again, that may be acceptable for 250 parts d*mn quick. Depends on where you are.
I went back and redid the search with "asia" in it and came up with this outfit at the top: www.hobid.com/.../3.html
Enter the part number and get an invitation to submit an RFQ.
Hope this works for you! Ken Jennejohn
An update: I called Matt at Arrow at the beginning of July about those incoming parts. He said they had been delayed until mid-September.
I had called various Atmel reps and distributors since posting this thread. One, Centaur, finally came through this week. We received two of these blighters in a puffy-bag. Yeah! I had no real assurances from them when I talked to them originally, so this was a distinct, but pleasant, surprise. Now the fun starts: our POS programmer doesn't burn these. EETools hasn't written a definition for these yet, but says they will do so cheerfully once we drop a grand on their latest programmer. Sure. Right. Uh huh. And here's your single-digit salute, guys...
Not a problem. I will bring in my Xeltek 3000U and we'll get on with it.
This little exercise suggests to me that Atmel's 8051-flavored chips are walking with the dinosaurs.
'Luck to you in your projects! kenjj
That was Centaur North Inc. of Sunnyvale, CA (plug, plug, plug...8>) kenjj
EETools hasn't written a definition for these yet, but says they will do so cheerfully once we drop a grand on their latest programmer had the exact same situation with Xeltek
I recoomend BP micro, they gave 2 youars notice on "update cessation" for programmers we have had for 10 years.