Hi, guys!
It came to my attention that you are using video memory chips: WD24512A.
Here's the link to all specs...
http://www.winbond-usa.com/products/winbond_products/pdfs/Memory/w24512a.pdf
I compared the pin layout for another product of winbond...
WD24i010a Here's the link too....
http://www.winbond-usa.com/products/winbond_products/pdfs/Memory/w24l010a.pdf
All these chips have the same layout except for pin1 (additional address line).
A very nice feature is that the latter one has more memory (128K!!!)
My question will be then why can't you use these chips for video memory on Sprinter board. Don't you think more memory would give additional resolutions and more pallet without pain in the ass. (I forgot to mention 10ns access time!!!) Just imagine, guys... Chips ARE ALMOST the same the VCC can be adjusted to nominal 3.3V and additional A16 signal can be added too...
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