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Thread: Exidy Sorcerer I ram expansion

  1. #1
    Join Date
    Oct 2018
    Location
    Trois-Rivieres, QC, Canada
    Posts
    9

    Default Exidy Sorcerer I ram expansion

    Hello,

    I have a Sorcerer I with 32k ram and would like to know if it's possible to expand it to 48k?

    Thank you.

    Pitou!

  2. Default

    Sorry for the late reply.

    I expanded mine back in the day to 56K using 64K DRAMs.

    http://www.vcfed.org/forum/showthrea...499#post421499

    If you're still interested I could draw up an easier SRAM upgrade.

  3. Default

    Quote Originally Posted by ClausB View Post
    Sorry for the late reply.

    I expanded mine back in the day to 56K using 64K DRAMs.

    http://www.vcfed.org/forum/showthrea...499#post421499

    If you're still interested I could draw up an easier SRAM upgrade.
    Thanks. Could you draw up an easier SRAM upgrade? I will be grateful.

  4. Default

    Do you have a Sorcerer I with 32K?

    I'll work on that.

  5. Default

    Connection diagram for a 32Kx8 SRAM (16K used) wired into a Sorcerer I:
    Code:
               +-----\/-----+
    13D-22   1 | A9     Vcc | 28  12C-16
    13D-23   2 | A8      Wr | 27  13B-3
    13D-1    3 | A7  3  A14 | 26  12C-8
    13D-2    4 | A6  2  A13 | 25  12C-6
    13D-3    5 | A5  K  A12 | 24  12C-11
    13D-4    6 | A4  x  A11 | 23  12B-3
    13D-5    7 | A3  8   Rd | 22  10B-1
    13D-6    8 | A2     A10 | 21  12A-13
    13D-7    9 | A1  S   En | 20  11C-6
    13D-8   10 | A0  R   D7 | 19  13C-18
    13D-9   11 | D0  A   D6 | 18  13C-3
    13D-10  12 | D1  M   D5 | 17  13C-16
    13D-11  13 | D2      D4 | 16  13C-5  
    13D-12  14 | Gnd     D3 | 15  13C-14 
               +------------+

  6. Default

    That will add 16K to a 32K Sorcerer I. I'll recommend adding it to the underside of the main board. Cut a 28-pin socket into two rows of 14 contacts. Solder one to the underside of the socket at 13D, as indicated above, so that the socket holes point horizontally. This will anchor the chip to the board. Splay the 28-pin IC flat so the pins stick straight out to each side. The other half of the socket will float on its point-to-point wiring so you can insert the IC into the anchored socket half and then slide on the floating half.

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