Old Chips. Any Value?

Go To Last Post
12 posts / 0 new
Author
Message
#1
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I've been having a bit of a spring clean and have amassed a pile of older chips. All are new and unused. I just can't decide if it's worth my while trying to sell them on eBay or if I'd be better just binning them.

 

On the AVR front I've got tubes of mega8-16, mega8L-8 and mega32-16. I've also got loads of Z80 type chips both CPU and peripherals. And also 8085 family and 8088/8086 family CPU and peripherals. Plus some interesting peripheral chips in small quantities.

 

I can find some of them on eBay but I can't tell if anyone ever sells any.

 

Does anyone here ever buy that sort of chip?

pragmatic - dealing with things sensibly and realistically in a way that is based on practical rather than theoretical consideration.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

On ebay there should be a check box for "sold items" in the search filters at the left. You can usually use that to determine what price previous similar items have sold for.

 

Just trying that on something like Z80 CPUs I find:

 

http://www.ebay.co.uk/itm/Two-Zi...

 

So £5 for two.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Don't bin them

 

I am also I SE England, I am sure I could cover postage & probably a small reasonable donation to your beer fund :-)

 

I probably have enough AVR's for present (but have no objection to increasing my stock) , z80 are no use to me but the peripheral chips could indeed be interesting. do you have a list?

Last Edited: Mon. May 15, 2017 - 12:26 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

IPguru wrote:
but the peripheral chips could indeed be interesting. do you have a list?

+1

 

Jim

If you want a career with a known path - become an undertaker. Dead people don't sue! - Kartman

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB user

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 1

IPguru wrote:

do you have a list?

 

I don't but I ought to do one. It might take a while though...

 

 

...that's about half of them and that doesn't include the ones in tubes.

pragmatic - dealing with things sensibly and realistically in a way that is based on practical rather than theoretical consideration.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Don't suppose you have any Intel 8255 PPIO chips in that lot Brian?  Some of those IC's look a lot like the way Intel cased their parts back in the day.  Specifically the ones in the trays on the right side...Lower right on the ones on the table, and lower left in the right most tray leaning against the wall.

 

 

I would be willing to pay the freight to have them just for the fun of connecting them to an AVR.  Yeah, I don't get out much. frown

 

Jim

If you want a career with a known path - become an undertaker. Dead people don't sue! - Kartman

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB user

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 1

jgmdesign wrote:

Don't suppose you have any Intel 8255 PPIO chips in that lot Brian?

 

I do, specifically Intel P8255A-5. PM me a mailing address and I'll put 3 of them in the post to you as a gift from one 'freak to another.

 

pragmatic - dealing with things sensibly and realistically in a way that is based on practical rather than theoretical consideration.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

OT: I believe we have been shown those nice drawers before here on 'freaks, but they (and the order in them) impress me again!

"He used to carry his guitar in a gunny sack, or sit beneath the tree by the railroad track. Oh the engineers would see him sitting in the shade, Strumming with the rhythm that the drivers made. People passing by, they would stop and say, "Oh, my, what that little country boy could play!" [Chuck Berry]

 

"Some questions have no answers."[C Baird] "There comes a point where the spoon-feeding has to stop and the independent thinking has to start." [C Lawson] "There are always ways to disagree, without being disagreeable."[E Weddington] "Words represent concepts. Use the wrong words, communicate the wrong concept." [J Morin] "Persistence only goes so far if you set yourself up for failure." [Kartman]

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Brian Fairchild wrote:
I can find some of them on eBay but I can't tell if anyone ever sells any.
There are distributors of EOL and NRND AVR.

One way to identify these is to search Octopart for such AVR.

Brian Fairchild wrote:
Does anyone here ever buy that sort of chip?
Maybe the OP of threads on EOL or NRND AVR; such threads are apparently a few per year.

 


Microchip Technology Inc

Microchip

ATmega16

http://www.microchip.com/wwwproducts/en/atmega16

In Production

Mature product; not recommended for new designs.

...

Ewing Components

http://www.ewinginc.com/index.php

https://octopart.com/atmega169-16au-microchip-477208

http://www.avrfreaks.net/forum/atmega16l-substitute-and-prog-services

 

"Dare to be naïve." - Buckminster Fuller

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Try http://forum.6502.org and the like. The people there will I'm sure want them.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I regard ATmega8 and ATmega32 as "currently useful" chips.  Not quite up to modern standards like ATmega328pb or ATmega1284p or xMega, but capable of a lot of "basic crunching" (they even run Arduino stuff), and fantastically cheap (< $1 from eBay/AliExpress/etc.)

 

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I still have some 90S1200s.  I feel old now.  S.