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Discontinued

REFURBISHED

    SRAM 64Kb REVISED

    SRAM 64Kb REVISED

    Our price:

    69.00 PLN

    Change currency:

    USDGBPEUR

    Weight: 0.1 kg

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    Buy more, pay less:

    • for 2 pieces and more - 3% (66.93 PLN)
    • for 5 pieces and more - 6% (64.86 PLN)
    • for 10 pieces and more - 9% (62.79 PLN)
    • for 50 pieces and more - 12% (60.72 PLN)
    Like Ask Tell

     

    SRAM MODULE is my first step to help ATARI owners to repair their computers home, as in most of the cases  faulty is dynamic ram

    • replaces base ram of 64KB in all 8bit ATARI
    • replaces broken DELAY LINE chip in XL computers and many more ICs - refer to schematics down the page
    • upgrades ram in 600XL to 64KB
    • PCB thickness is 0,8mm

     

    Inside BOX:

    • SRAM MODULE

     

    Disclaimer: 

    • If you:
      • are not familiar with soldering
      • do not have proper tools
      • do not understand STEP BY STEP instructions 

              please LET a pro technician do it for you or send me your ATARI BOARD for installation. Upgrade installation cost            is 5 € only. Contact me to arrange installation.

    • Please remeber - wrong tools usage or low skills may damage atari 
    • Any damage / harm to your hardware is NOT subject of any kind of warranty.
    • Installation is very easy, but unexperienced hands can do a lot of damage. Please, do not ask me questions WHAT HAVE I DONE WRONG WITH INSTALLATION - answer will be always the same -

     

    I DO NOT KNOW

     

     

    Step by step: 

    • REMOVE old RAM CHIPS ( hint: not necessary actaully; if Your ram do not get hot, You can remove resistors on data lines to ram and keep ram chips intact) 
    • install  SRAM MODULE under MAIN CPU; insert CPU to SRAM MODULE
    • Connect CI point at sram module  to  CAS_INHIBIT SIGNAL (for example MMU pin 16)
    • ready :-)
    • EXT - connection to Extension Select is not needed to resurect atari, but sme upgrades may needed: Rapidus or connected to PBI.  Please, refer to chematic of Your computer. 
    • PIN 1 is below EXT hole; bottom left at below picture.

     

     

    ps. handy article https://www.evilmadscientist.com/2010/basics-finding-pin-1/ if You do not know how to identify pin 1 in chips. PIN 1 always goes to Pin 1 

     

     

     

    SRAM MODULE COMPLETLY REPLACES below parts that can be actually eminated now. 

     

    • 800XL

     

    • XE ( and majority of freddy chip, than can be now  replaced even with clk_divider built upon TTL 74)

     

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