Spi
About the Spi PCB
Spi is an open source PCB design by scefrom, published on GitHub under the Custom license license. It is a 2-layer board measuring 135.9 × 53.3 mm, with 45 components from 23 distinct parts.
Other key parts include the 74HC125, 74HC164, 74HC04, 74HC153 and 74HC32. By type, the board carries 15 ICs, 9 resistors, 3 connectors, 3 diodes and 2 capacitors.
It belongs with the retro computing designs in this gallery.
From the project
A board featuring the Motorola 68000
Main components on the Spi
Spi bill of materials (BOM)
45 components, 23 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74HC125 | DIP-14_W7.62mm | U1, U2 |
| 1 | 74HC164 | DIP-14_W7.62mm | U3 |
| 1 | 74HC04 | DIP-14_W7.62mm | U4 |
| 1 | 74HC153 | DIP-16_W7.62mm | U5 |
| 1 | 74HC32 | DIP-14_W7.62mm | U6 |
| 3 | 74HC541 | DIP-20_W7.62mm | U7, U8, U10 |
| 1 | 74HC573 | DIP-20_W7.62mm | U9 |
| 1 | 74HC688 | DIP-20_W7.62mm | U11 |
| 1 | 74HC157 | DIP-16_W7.62mm | U12 |
| 1 | 74HC165 | DIP-16_W7.62mm | U13 |
| 2 | 74HC161 | DIP-16_W7.62mm | U14, U15 |
| 1 | spi-port | IDC-Header_2x05_P2.54mm_Horizontal | J1 |
| 1 | perslot1b | edge_connector_15p_2.54mm | J2 |
| 1 | perslot1a | edge_connector_30p_2.54mm | J3 |
| 9 | 100n | C_Disc_D3.0mm_W1.6mm_P7.62mm | B1, B2, B3, B4, B5, B7, B8, B9 +1 |
| 3 | 100n | C_Disc_D3.0mm_W1.6mm_P2.54mm | B6, B11, B12 |
| 1 | 10u | CP_Radial_D5.0mm_P2.00mm | B13 |
| 3 | D_Schottky_Filled | D_DO-35_SOD27_P2.54mm_Vertical_AnodeUp | D1, D2, D3 |
| 2 | 22pF | C_Disc_D3.0mm_W1.6mm_P2.54mm | C1, C2 |
| 2 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R2, R6 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3, R10, R11, R12 |
| 2 | 4k7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R5, R9 |
| 1 | 2k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R7 |
Spi design files
The KiCad project lives in the scefrom/SF68 repository on GitHub; these links point at the commit this page was built from.
- Layoutspi/spi.kicad_pcb
- Schematicspi/spi.kicad_sch
Spi: common questions
How big is the Spi PCB?
The Spi measures 135.9 × 53.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Spi?
45 components, from 23 distinct parts. The full bill of materials is listed on this page.
Where can I download the Spi design files?
From the scefrom/SF68 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Spi 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.
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