MacIIROMSIMM
About the MacIIROMSIMM PCB
MacIIROMSIMM is an open source PCB design by garrettsworkshop, published on GitHub under the Custom license license. It is a 4-layer board measuring 97.8 × 25 mm, with 36 components from 10 distinct parts.
Other key parts include the MX29LV640, 74LVC245APW, XC6206P332MR and 74LVC1G02GW. By type, the board carries 15 capacitors, 11 ICs, 4 resistors, 1 connector and 1 switch.
From the project
ROM SIMM for Apple Macintosh II-series and Macintosh SE/30 machines
Main components on the MacIIROMSIMM
MacIIROMSIMM bill of materials (BOM)
36 components, 10 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | MX29LV640 | TSOP-I-48_18.4x12mm_P0.5mm | U1, U2 |
| 7 | 74LVC245APW | TSSOP-20_4.4x6.5mm_P0.65mm | U3, U4, U5, U6, U7, U9, U10 |
| 1 | XC6206P332MR | SOT-23 | U11 |
| 1 | 74LVC1G02GW | SOT-353 | U12 |
| 1 | ROM | MacIIROMSIMM_Edge | J1 |
| 4 | — | PasteHole_1.152mm_NPTH | H1, H2, H3, H4 |
| 1 | ROM Sel. | SW_DIP_SPSTx03_Slide_DSHP03TS_P1.27mm | SW1 |
| 15 | 2U2 2u2 | C_0603 | C1, C2, C3, C4, C5, C6, C7, C8 +7 |
| 3 | 3K3 3k3 | R_0603 | R1, R2, R4 |
| 1 | 100 | R_0603 | R3 |
MacIIROMSIMM design files
The KiCad project lives in the garrettsworkshop/MacIIROMSIMM repository on GitHub; these links point at the commit this page was built from.
- LayoutMacIIROMSIMM.kicad_pcb
- SchematicMacIIROMSIMM.kicad_sch
- BOMgerber/MacIIROMSIMM-BOM.csv
MacIIROMSIMM: common questions
How big is the MacIIROMSIMM PCB?
The MacIIROMSIMM measures 97.8 × 25 mm, has 4 copper layers and is 1.6108 mm thick.
How many components are on the MacIIROMSIMM?
36 components, from 10 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 MacIIROMSIMM design files?
From the garrettsworkshop/MacIIROMSIMM 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 MacIIROMSIMM design in my own project?
It is published under Custom license, which limits how it may be reused; read the license before building on it.