Mini68k
About the Mini68k PCB
Mini68k is an open source PCB design by seventhoctave, published on GitHub. It is a 2-layer board measuring 147.3 × 100.3 mm, with 37 components from 29 distinct parts.
Other key parts include the HM62256BLP-7, 68008D, L7805, 28C256/27C256 and GAL16V8. By type, the board carries 11 capacitors, 8 ICs, 5 connectors, 5 jumpers, 2 crystals and 2 switches.
It belongs with the retro computing designs in this gallery.
From the project
mc68008 SBC
based on http://www.christle.us/index.php?P=4
Main components on the Mini68k
Mini68k bill of materials (BOM)
37 components, 29 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | HM62256BLP-7 | DIP-28_W15.24mm_LongPads | U1 |
| 1 | 68008D | DIP-48_W15.24mm_LongPads | U2 |
| 1 | L7805 | TO-220-3_Horizontal_TabDown | U3 |
| 1 | 28C256/27C256 | DIP-28_W15.24mm_LongPads | U4 |
| 1 | GAL16V8 | DIP-20_W7.62mm_LongPads | U5 |
| 1 | MAX708CPA+ | DIP-8_W7.62mm_LongPads | U6 |
| 1 | 68681 | DIP-40_W15.24mm_LongPads | U7 |
| 1 | 74LS05 | DIP-14_W7.62mm_LongPads | U8 |
| 1 | 8 Mhz | Oscillator_DIP-14_LargePads | X1 |
| 1 | 3.6864 Mhz | Crystal_HC49-4H_Vertical | Y1 |
| 1 | Jack-DC | BarrelJack_Horizontal | J1 |
| 1 | 6-bit input port | PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | 8-bit output port | PinHeader_1x08_P2.54mm_Horizontal | J3 |
| 1 | FTDI header COM1 | PinHeader_1x06_P2.54mm_Horizontal | J4 |
| 1 | FTDI header COM2 | PinHeader_1x06_P2.54mm_Horizontal | J5 |
| 2 | Jumper | PinHeader_1x02_P2.54mm_Vertical | JP1, JP2 |
| 2 | Jumper_3_Open | PinHeader_1x03_P2.54mm_Vertical | JP3, JP4 |
| 1 | Jumper | PinSocket_1x02_P2.54mm_Vertical | JP5 |
| 1 | SW_SPDT | SW_E-Switch_EG1271_DPDT | SW1 |
| 1 | SW_Push | SW_PUSH_6mm | SW2 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | D_ALT | D_DO-35_SOD27_P10.16mm_Horizontal | D1 |
| 1 | RED | LED_D4.0mm | D2 |
| 1 | 100uF | CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | 10uF | CP_Radial_D5.0mm_P2.50mm | C2 |
| 7 | .1u | C_Disc_D5.0mm_W2.5mm_P2.50mm | C3, C4, C5, C6, C7, C8, C9 |
| 1 | 5pf | C_Disc_D5.0mm_W2.5mm_P2.50mm | C10 |
| 1 | 15pf | C_Disc_D5.0mm_W2.5mm_P2.50mm | C11 |
| 1 | 330R | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 1k | R_Array_SIP7 | RN1 |
Mini68k design files
The KiCad project lives in the seventhoctave/mini68k repository on GitHub; these links point at the commit this page was built from.
Mini68k: common questions
How big is the Mini68k PCB?
The Mini68k measures 147.3 × 100.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mini68k?
37 components, from 29 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mini68k design files?
From the seventhoctave/mini68k repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Mini68k design in my own project?
The repository has no license, so all rights stay with seventhoctave. Use it as a reference, and ask the author before reusing the design.
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