HP48GX RAM card design

[arborist]

(01-20-2021 10:25 PM)Jonathan Busby Wrote:  Well, I have the Seiko-Epson official catalog of SRAM cards ( and other memory cards ) with all the technical specs, but, unfortunately, I've moved to Colorado from Texas and most of my possessions are in storage ATM. I scanned the catalog and I have it saved on an external HDD but it is in storage as well. I also wrote down, a long time ago, all the salient information regarding HP48GX compatible memory cards, but, it again is in storage :/

Thanks Paul and Wan for your work on this. Wan, would you consider sharing the KiCad (or at least Gerber) of your middle board?

This is the most exciting HP48 project in a while!

Jonathan, did you get access to your stuff? I would love to have this information.