68k-SBC
About the 68k-SBC PCB
68k-SBC is an open source PCB design by transistorfet, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 154.9 × 139.7 mm, with 72 components from 38 distinct parts.
Other key parts include the L7805, 68010, 74HC14, 74LS05 and 74LS32. By type, the board carries 21 resistors, 17 capacitors, 12 ICs, 6 jumpers, 5 connectors and 5 diodes.
It belongs with the retro computing designs in this gallery.
From the project
A collection of 68k computer projects, including a unix-like operating system written in C that runs on them
Main components on the 68k-SBC
68k-SBC bill of materials (BOM)
72 components, 38 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | L7805 | TO-220-3_Vertical | U1 |
| 1 | 68010 | DIP-64_W22.86mm_Socket_LongPads | U2 |
| 1 | 74HC14 | DIP-14_W7.62mm_LongPads | U3 |
| 1 | 74LS05 | DIP-14_W7.62mm_LongPads | U4 |
| 1 | 74LS32 | DIP-14_W7.62mm_LongPads | U5 |
| 1 | 74LS20 | DIP-14_W7.62mm_LongPads | U6 |
| 1 | 74LS138 | DIP-16_W7.62mm_LongPads | U7 |
| 2 | AM29F040 | DIP-32_W15.24mm_Socket_LongPads | U8, U9 |
| 2 | HM628512 | DIP-32_W15.24mm_Socket_LongPads | U10, U11 |
| 1 | 68681 | DIP-40_W15.24mm_Socket_LongPads | U12 |
| 2 | Crystal | Crystal_HC49-4H_Vertical | Y1, Y2 |
| 1 | ADBUS | PinHeader_2x20_P2.54mm_Vertical | J1 |
| 1 | Barrel_Jack | BarrelJack_Horizontal | J2 |
| 1 | SIGBUS | PinHeader_2x20_P2.54mm_Vertical | J3 |
| 1 | Serial1 | PinHeader_1x06_P2.54mm_Horizontal | J4 |
| 1 | Serial2 | PinHeader_1x06_P2.54mm_Horizontal | J5 |
| 1 | Heatsink | Heatsink_Fischer_SK104-STC-STIC_35x13mm_2xDrill2.5mm | HS1 |
| 1 | ROMJMP | PinHeader_1x03_P2.54mm_Vertical | JP1 |
| 1 | ROMACK | PinHeader_1x03_P2.54mm_Vertical | JP2 |
| 2 | POWER | PinHeader_1x02_P2.54mm_Vertical | JP3, JP4 |
Show 18 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | IRQ | PinHeader_1x02_P2.54mm_Vertical | JP5 |
| 1 | IACK | PinHeader_1x02_P2.54mm_Vertical | JP6 |
| 1 | RESET | SW_PUSH_6mm | SW1 |
| 1 | IP2 | SW_PUSH_6mm | SW2 |
| 1 | IP3 | SW_PUSH_6mm | SW3 |
| 1 | HALT | LED_D5.0mm | D1 |
| 1 | OP4 | LED_D5.0mm | D2 |
| 1 | OP5 | LED_D5.0mm | D3 |
| 1 | OP6 | LED_D5.0mm | D4 |
| 1 | OP7 | LED_D5.0mm | D5 |
| 2 | 470uF | CP_Radial_D10.0mm_P5.00mm | C1, C2 |
| 12 | 0.1uF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C3, C4, C5, C6, C7, C8, C9, C10 +4 |
| 1 | 0.47uF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C15 |
| 1 | 15pF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C16 |
| 1 | 5pF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C17 |
| 13 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8 +5 |
| 6 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9, R11, R16, R17, R18, R19 |
| 2 | 5.1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R13, R14 |
68k-SBC design files
The KiCad project lives in the transistorfet/computie repository on GitHub; these links point at the commit this page was built from.
68k-SBC: common questions
How big is the 68k-SBC PCB?
The 68k-SBC measures 154.9 × 139.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 68k-SBC?
72 components, from 38 distinct parts. The full bill of materials is listed on this page.
Where can I download the 68k-SBC design files?
From the transistorfet/computie repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the 68k-SBC design in my own project?
Yes, under the terms of its GPL-3.0 license, which transistorfet chose for the repository.
More boards in computie
Similar boards
Amiga External
hoglet67
21.9 × 76.7 mm6 parts2LGPL-3.01.0k
Atari pickup
26.4 × 53.9 mm7 parts2LGPL-3.01.0k
Deniseadapter
26.7 × 62.2 mm16 parts2LGPL-3.01.0k
Analog
53.9 × 23.2 mm33 parts2LGPL-3.01.0k
Rgb to hdmi
77 × 97 mm67 parts2LGPL-3.01.0k
Buffer
53.9 × 23.2 mm13 parts2LGPL-3.01.0k