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43 lines
1.4 KiB
Markdown
43 lines
1.4 KiB
Markdown
# Macintosh SE/30 Logicboard recreation
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This is a recreation of the Macintosh SE/30 logicboard.
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It is not a 1:1 copy of the original logicboard but instead the original schematics were used to completely redesign and route a lookalike board.
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The provided logicboard files are licensed under CC-BY-NC-SA - they are NOT intended for commercial use.
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# Reverse engineered PALs
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The original PALs have been reverse-engineered and equations were rewritten to match the behaviour of the originals - the provided
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JEDEC files are not dumps of the content of the original chips.
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The provided JEDEC files are intended to be used with a 16V8-type device (GAL16V8, PALCE16V8, ATF16V8) as a replacement
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for the video, clock and RAM-signalling PALs. Certain low power ATF16V8B don't work. ATF16V8C use pinkeepers instead of internal pullups and might be problematic as well.
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Board locations and original part number reference:
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UI6 341-0665-A
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UH7 341S0689-C
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UG6 341-0747-A
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UG7 341-0746-A
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UE6 341-0754-A
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UE7 341-0755-A
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# Board Files
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The provided gerber files have been generated using the JLCPCB EAGLE cam job files.
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Pick and place data is intended to be used with JLCPCB as well.
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Other manufacturers might have different requirements to the gerbers.
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# BOM
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A BOM is available at:
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https://docs.google.com/spreadsheets/d/1CAzGjHxQaQrduQC-hQ8sB2I6Y56fUlCWdJMCUDho0NE
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