ProDOS-ROM-Drive
About the ProDOS-ROM-Drive PCB
ProDOS-ROM-Drive is an open source PCB design by tjboldt, published on GitHub under the MIT license. It is a 2-layer board measuring 85.7 × 54 mm, with 17 components from 7 distinct parts.
Other key parts include the 74LS00 and 74LS32. By type, the board carries 8 capacitors, 2 ICs and 1 connector.
From the project
A bootable 1 MB solid state disk for Apple ][ computers
You can order blank circuit boards from PCBWay or upload the provided gerber and drill files to any PCB manufacturer.
My first Apple computer was an Apple //e that my brother bought in early 1984. Countless hours were spent playing games which developed my interest in building games. This also led to the creation of various utilities to help organize disks or just to see what could be done while programming.
Main components on the ProDOS-ROM-Drive
ProDOS-ROM-Drive bill of materials (BOM)
17 components, 7 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS00 | DIP-14_W7.62mm | U1 |
| 1 | 74LS32 | DIP-14_W7.62mm | U2 |
| 1 | Apple II Expansion Slot | Apple II Expansion Edge Connector | J1 |
| 3 | 74LS245 | DIP-20_W7.62mm | DataBuffer1, HiAddrBuffer1, LowAddrBuffer1 |
| 1 | 27C080 | DIP-32_W15.24mm | EPROM1 |
| 2 | 74LS374 | DIP-20_W7.62mm | HiAddrLatch1, LowAddrLatch1 |
| 8 | 0.1µF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C1, C2, C3, C4, C5, C6, C7, C8 |
ProDOS-ROM-Drive design files
The KiCad project lives in the tjboldt/ProDOS-ROM-Drive repository on GitHub; these links point at the commit this page was built from.
ProDOS-ROM-Drive: common questions
How big is the ProDOS-ROM-Drive PCB?
The ProDOS-ROM-Drive measures 85.7 × 54 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ProDOS-ROM-Drive?
17 components, from 7 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the ProDOS-ROM-Drive design files?
From the tjboldt/ProDOS-ROM-Drive repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the ProDOS-ROM-Drive design in my own project?
Yes, under the terms of its MIT license, which tjboldt chose for the repository.