May 262019
The Sony CXK5808 is a 1k x 8-bit RAM of which we know very little about, no datasheet from manufacturer is available, we can only find its pinout on schematics of arcade PCBs.It’s a 400mil DIP22 IC:
Therefore time ago I designed a simple adapter in order to use a common 6116 (or other 300mil DIP24 2k x 8-bit RAM device) in place of this obscure and hard to find part :
Here’s testing of the adapter on my Gun.Smoke PCB:
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