Due to present COVID-19 situation, only UPS/FEDEX postages work; POLISH POST services are temporaly suspended (exceptions: Germany, Slovakia, Czech). VBXE / VBXL postages delayed!                                              

Due to present COVID-19 situation, only UPS/FEDEX postages work; POLISH POST services are temporaly suspended (exceptions: Germany, Slovakia, Czech). VBXE / VBXL postages delayed!                                              

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REFURBISHED

SRAM 64Kb REVISED

SRAM 64Kb REVISED

Our price:

69.00 PLN

Change currency:

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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)
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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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