SF68
About the SF68 PCB
SF68 is an open source PCB design by scefrom, published on GitHub under the Custom license license. It is a 4-layer board measuring 271.8 × 147.3 mm, with 122 components from 54 distinct parts.
Other key parts include the 74HC541, 74HC245, 28C256, AS7C164A and 68HC000P10. By type, the board carries 30 ICs, 21 resistors, 16 connectors, 11 capacitors, 3 switches and 1 transistor.
It belongs with the retro computing designs in this gallery.
From the project
A board featuring the Motorola 68000
Main components on the SF68
SF68 bill of materials (BOM)
122 components, 54 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | 74HC541 | DIP-20_W7.62mm | U1, U2, U6, U7, U20, U26, U29 |
| 2 | 74HC245 | DIP-20_W7.62mm | U3, U8 |
| 2 | 28C256 | DIP-28_W15.24mm | U4, U5 |
| 2 | AS7C164A | DIP-28_W7.62mm | U9, U10 |
| 1 | 68HC000P10 | DIP-64_W22.86mm | U11 |
| 3 | 74HC688 | DIP-20_W7.62mm | U12, U15, U18 |
| 1 | 74HC157 | DIP-16_W7.62mm | U13 |
| 1 | 74HC74 | DIP-14_W7.62mm | U14 |
| 1 | 74HC139 | DIP-16_W7.62mm | U16 |
| 1 | 74HC04 | DIP-14_W7.62mm | U17 |
| 3 | 74HC32 | DIP-14_W7.62mm | U19, U21, U23 |
| 1 | 74HC05 | DIP-14_W7.62mm | U22 |
| 1 | 74HC273 | DIP-20_W7.62mm | U24 |
| 2 | 74HC08 | DIP-14_W7.62mm | U25, U28 |
| 2 | 74HC14 | DIP-14_W7.62mm | U27, U30 |
| 1 | Q_NPN_CBE | TO-92 | Q1 |
| 1 | CXO_DIP8 | Oscillator_DIP-8 | X1 |
| 1 | perslot4a | 55308437 | J1 |
| 1 | perslot3a | 55308437 | J2 |
| 1 | perslot2a | 55308437 | J3 |
Show 34 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | perslot1a | 55308437 | J4 |
| 1 | ramslot1 | 55308437 | J5 |
| 1 | ramslot2 | 55308437 | J6 |
| 1 | ramslot3 | 55308437 | J7 |
| 1 | perslot5a | IDC-Header_2x30_P2.54mm_Horizontal | J8 |
| 1 | ramslot4 | 55308437 | J9 |
| 1 | perslot4b | 55308432 | J10 |
| 1 | perslot3b | 55308432 | J11 |
| 1 | perslot2b | 55308432 | J12 |
| 1 | perslot1b | 55308432 | J13 |
| 1 | pwrjack | BarrelJack_Horizontal | J14 |
| 1 | perslot5b | IDC-Header_2x15_P2.54mm_Horizontal | J15 |
| 1 | stprobe | PinHeader_1x01_P2.54mm_Vertical | J16 |
| 4 | CP_Radial_D5.0mm_P2.00mm | CP_Radial_D5.0mm_P2.00mm | CB1, CB7, CB15, CB36 |
| 4 | C_Disc_D3.0mm_W1.6mm_P2.54mm | C_Disc_D3.0mm_W1.6mm_P2.54mm | CB2, CB3, CB14, CB16 |
| 27 | C_Disc_D3.0mm_W1.6mm_P7.62mm | C_Disc_D3.0mm_W1.6mm_P7.62mm | CB4, CB5, CB6, CB8, CB9, CB10, CB12, CB13 +19 |
| 1 | CP_Radial_D8.0mm_P3.50mm | CP_Radial_D8.0mm_P3.50mm | CB11 |
| 1 | romdrd | PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | 5k | Potentiometer_Bourns_3386P_Vertical | RV1 |
| 1 | pwrsw | 800CSP1B6M6QE | SW1 |
| 1 | ressw | 800SP9B6M6RE | SW2 |
| 1 | timersw | SW_DIP_SPSTx01_Slide_9.78x4.72mm_W7.62mm_P2.54mm | SW3 |
| 1 | LED_Filled | LED_D5.0mm_Horizontal_O3.81mm_Z3.0mm | D1 |
| 5 | 22pF | C_Disc_D3.0mm_W1.6mm_P2.54mm | C1, C2, C5, C6, C7 |
| 1 | 100nF | C_Disc_D3.0mm_W1.6mm_P2.54mm | C3 |
| 1 | 100uF | CP_Radial_D8.0mm_P3.50mm | C4 |
| 1 | 220pF | C_Disc_D3.0mm_W1.6mm_P2.54mm | C8 |
| 3 | 10uF | CP_Radial_D5.0mm_P2.00mm | C9, C10, C11 |
| 6 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1, R4, R7, R8, R18, R19 |
| 9 | 4k7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R2, R3, R5, R6, R9, R10, R13, R15 +1 |
| 1 | 20k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R11 |
| 2 | 2k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R12, R14 |
| 1 | 14k7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R16 |
| 2 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R17, R20 |
SF68 design files
The KiCad project lives in the scefrom/SF68 repository on GitHub; these links point at the commit this page was built from.
- LayoutSF68.kicad_pcb
- SchematicSF68.kicad_sch
SF68: common questions
How big is the SF68 PCB?
The SF68 measures 271.8 × 147.3 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the SF68?
122 components, from 54 distinct parts. The full bill of materials is listed on this page.
Where can I download the SF68 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 SF68 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.
More boards in SF68
Vga cpld jtag
223.5 × 147.3 mm122 parts2LCustom license2
Vga cpld
223.5 × 147.3 mm116 parts2LCustom license2
Vga cpld fctlines
223.5 × 147.3 mm99 parts2LCustom license2
Vga cpld jtag fctlines
223.5 × 147.3 mm99 parts2LCustom license2
Ps2
137.2 × 53.3 mm58 parts2LCustom license2
Spi
135.9 × 53.3 mm45 parts2LCustom license2
Floppy
188 × 66 mm33 parts2LCustom license2
Ps2 old
135.9 × 56.5 mm29 parts2LCustom license2
Uart
135.9 × 41.3 mm16 parts2LCustom license2
Lcd2x16
96.5 × 50.8 mm14 parts2LCustom license2
Ram1M
105.4 × 33.7 mm5 parts2LCustom license2
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