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Where can I get flashable rom chips?

Discussion in 'Technical Discussion' started by Moogle!, Jan 11, 2009.

  1. Moogle!

    Moogle!

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    In my case, I need a 64KB (512kbit) 28 pin package, dual inline. Where can I get one of these?

    All I have are non-writeable roms and some EEPROMS, which I don't have a burner for.
     
  2. eBay
     
  3. Moogle!

    Moogle!

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    Ebay has turned up nothing in this department. Neither has Digikey.
     
  4. TmEE

    TmEE

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    DIP type chips are relatively hard to find these days. The best you can get are in PLCC package, or maybe SO. Most chips are in TSOP package. 5V tolerant chips are rather uncommon these days :)
     
  5. Moogle!

    Moogle!

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    So I noticed the scarcity. :p

    I have pondered buying the PLCC chips of the size I need, as I have several PCI cards I can on them with using Uniflash, and buying some adapters. I know they make them, a few pepple on Ebay sell them.
     
  6. TmEE

    TmEE

    Master of OPL3-SA2/3 Tech Member
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    I usually get my small PLCC type flashes off dead boards of CD and DVD drives. In most cases with brute force, all chip pins are intact. On later drives, you get a nice 4M 5V flash, and if they have boot block and its protected, then be prepared to give them additional 12V to unlock them :(
     
  7. Moogle!

    Moogle!

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    These seem to have to be a the correct size. I've tried flashing a 128K file onto a 256K chip, and it just spat out an error message saying it was the inccorect size.
     
  8. SlushBox

    SlushBox

    bored with living Member
  9. Moogle!

    Moogle!

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    That might work, but I would have to buy an EEPROM burner. What should I look for in one?
     
  10. SlushBox

    SlushBox

    bored with living Member
    Something that works? From what I know, many industrial burners are expensive and you need to make sure it can program the chip you're working with.

    The cheapest solution: http://shop.ebay.com/?_from=R40&_trksi...kw=willem+eprom

    These Willem programmers should be compatible with whatever you're looking to use. Make sure you don't mistakenly buy a bare pcb!
     
  11. Moogle!

    Moogle!

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    Not bad, but probably not going to happen soon.

    Thanks for your help. :(