Neo Geo VRAM - CXK58267AM vs CXK58257AM

neoslacker

n00b
Joined
Sep 6, 2018
Posts
26
Hey folks,

CXK58267AM has two CE pins instead of a CE1 and an OE (Output Enable) pin, I think this is to help with attaching it to a battery.

Without the OE pin, would CXK58267AM be a good replacement for CXK58257AM for VRAM?
 
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RyuX

Crossed Swords Squire
Joined
Sep 19, 2018
Posts
179
Hey.. from the Neo Geo DEV Page (hope that helps)

I think if it was a good replacement it would be listed on the page.. but not sure.

However it also says that as long as those requirements are met - others should also fit..

Replacement
For Work, Backup and Video RAM look for 256kbit SRAM, 5 volt, JEDEC pin compatible, 32K x 8bit, 120ns or faster in 28 pin SOIC package (not SOJ). Cypress, ISSI, UMC and Lyontek still make them and most today are 45ns, so any will do. This includes 62256, 43256, cxk58257, and others.
 

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