Xosera
About the Xosera PCB
Xosera is an open source PCB design by SmallRobot2000, published on GitHub. It is a 4-layer board measuring 122 × 92 mm, with 46 components from 22 distinct parts.
Other key parts include the 74HCT245, ATF16V8BQL, GAL22V10 and 74LS74. By type, the board carries 11 capacitors, 9 connectors, 9 resistors, 7 jumpers, 6 ICs and 3 test points.
It belongs with the keyboards and retro computing designs in this gallery.
From the project
Motorola 68010 based sbc with IDE, keyboard, DMA, PIT, Xosera & more!
This isn't my first or (hopefully)last Retro style computer system, I alredy made two 6502 based computers, 8088 based system that is IBM compatable with 8 bit ISA, and built and coded for a handfull of z80/z180 based systems, mostly two RC2014 (Its funny that i like z80 MUCH more than 6502 but never made a system araund z80). And also have ZX Spectrum 48k and ZX Spectrum NEXT.
Main components on the Xosera
Xosera bill of materials (BOM)
46 components, 22 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 74HCT245 | DIP-20_W7.62mm_Socket_LongPads | IC1, IC2, IC5 |
| 1 | ATF16V8BQL | DIP-20_W7.62mm_Socket_LongPads | IC3 |
| 1 | GAL22V10 | DIP-24_W7.62mm_LongPads | IC4 |
| 1 | 74LS74 | DIP-14_W7.62mm_Socket_LongPads | IC6 |
| 1 | 2N3904 | TO-92_HandSolder | Q1 |
| 1 | IOSEL/VPA | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Upduino_LHS | PinSocket_1x24_P2.54mm_Vertical | J2 |
| 1 | Upduino_RHS | PinSocket_1x24_P2.54mm_Vertical | J3 |
| 1 | PMOD_TOP | PinSocket_2x06_P2.54mm_Horizontal | J4 |
| 1 | PMOD_BOTTOM | PinSocket_2x06_P2.54mm_Horizontal | J5 |
| 1 | CONN_01X06_MALE Conn_01x06_Male | PinHeader_1x06_P2.54mm_Vertical | J6 |
| 2 | CONN_02X04_COUNTER_CLOCKWISE Conn_02x04_Counter_Clockwise | PinHeader_2x04_P2.54mm_Vertical | J7, J8 |
| 1 | CONN_02X32_ODD_EVEN Conn_02x32_Odd_Even | PinSocket_2x32_P2.54mm_Horizontal | J28 |
| 5 | Jumper | PinHeader_1x02_P2.54mm_Vertical | JP1, JP3, JP4, JP5, JP6 |
| 1 | Jumper | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP2 |
| 1 | ~{IRQ5} | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP7 |
| 3 | CONN_01X08_MALE Conn_01x08_Male | PinHeader_1x08_P2.54mm_Vertical | TP1, TP2, TP3 |
| 9 | 100NF 100nF | C2.5-3 | C1, C2, C3, C4, C5, C6, C9, C10 +1 |
| 1 | 100UF 100uF | CP_Radial_D5.0mm_P2.50mm | C7 |
| 1 | 220UF 220uF | CP_Radial_D6.3mm_P2.50mm | C8 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | R | R-0207_10 | R1, R2, R3, R4, R5, R6, R7, R8 |
| 1 | 150K | R-0207_10 | R9 |
Xosera design files
The KiCad project lives in the SmallRobot2000/AMIX-68k repository on GitHub; these links point at the commit this page was built from.
- Layoutxosera/xosera.kicad_pcb
- Schematicxosera/xosera.kicad_sch
- BOMxosera/production/bom.csv
Xosera: common questions
How big is the Xosera PCB?
The Xosera measures 122 × 92 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Xosera?
46 components, from 22 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 Xosera design files?
From the SmallRobot2000/AMIX-68k 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 Xosera design in my own project?
The repository has no license, so all rights stay with SmallRobot2000. Use it as a reference, and ask the author before reusing the design.
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