Image Map Image Map
Results 1 to 4 of 4

Thread: MC6665 Memory

  1. #1
    Join Date
    Apr 2018
    Location
    Marysville Ohio
    Posts
    169

    Default MC6665 Memory

    I need 8 of these MC6665 memory chips for my Coco-2 I found this memory number in this manual I download from here http://www.colorcomputerarchive.com and the manual was Color Computer 2 NTSC Service Manual (26-3026 & 26-3027) (Tandy).pdf and I found what I need on page 18 and page in the document. I did a search on ebay with no hits. I anyone has any or know to get just post or send a PM. Thanks

    UPDATE:
    If there is other I can use please list them.
    Last edited by Jmdlcar; June 5th, 2018 at 01:48 PM.
    I only ask Question if I don't know and I will reply to question if I know.

  2. #2
    Join Date
    Jun 2015
    Location
    Calgary, AB
    Posts
    26

    Default

    I have a bunch of MCM6665BP20 chips - 64Kx1 DRAM 200ns w/ 128 cycle 2ms refresh. Basically they're 4164's but with 7-bit refresh like 4116's rather than the 8-bit in 4164's. Various other IC manufacturers made similar DRAMs. I'm not familiar with the Coco-2 and the references I saw are somewhat ambiguous but it appears they used 5V-only 4116's.

    Prices seem to be all over the map for these. Let me know if you want some of them and we can come up with a price ... perhaps $20 for eight including shipping.

  3. #3

    Default

    Quote Originally Posted by Jmdlcar View Post
    I need 8 of these MC6665 memory chips...
    I have some MCM6665BP15 chips.
    ☀☀☀ Visit Take Another Step for both computer and non-computer related discussions. ☀☀☀

    If you're looking for DS/DD or DS/HD 3" or 5" floppy disks, PM me. I've got some new, used, and factory over-labeled disks for sale.

    There is a crack in everything. That's how the light gets in. -- Leonard Cohen

  4. #4
    Join Date
    Apr 2018
    Location
    Marysville Ohio
    Posts
    169

    Default

    I found them all ready, thanks.
    I only ask Question if I don't know and I will reply to question if I know.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •