Apple eMate 300 Expansion Board

An eMate expansion module (Open Hardware)

License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Schematics

The schematics are available to download in Hi-Res JPEG (300 DPI), Lo-Res JPG (72 DPI), and PDF Vector format.

Bill of Materials

• 2x KM416V1000BT-L6 or 2x IS41LV16105D-50TLI (or lower latency versions of these chips) (Mouser)
• 1x E28F016SV (larger storage densities may be supported but have not been tested)
• 4x 100nF Ceramic Capacitor (0402 Footprint) (DigiKey)

Credits

Special thanks is owed to the following:

1. Colin from This Does Not Compute (YouTube) for loaning me the eMate Expansion module from this video for backward engineering.
2. Jacob "Androda" (GitHub) for his help understanding modern memory chip alternatives and reviewing PCB designs.
3. The Open Retro SCSI Discord Server for fostering community development on retro hardware.