ROM SIMM Pinouts — #8

Post #8 by tt

Source Forum	68kMLA
Category	68k
Post Date	Sat, 6 Feb 2010 - 22:36
Original URL	https://68kmla.org/bb/threads/rom-simm-pinouts.19767/

Post

I derived a pinout for the old Mac IIfx/IIsi/IIci ROM SIMM from some info found at Gamba's place together with a specsheet for the Atmel chips he used on his custom SIMM.

Are you trying to fabricate replica SIMMs?