ISA FPGA CPU
About the ISA FPGA CPU PCB
ISA FPGA CPU is an open source PCB design by robfinch, published on GitHub. It is a 2-layer board measuring 263.9 × 114.8 mm, with 98 components from 21 distinct parts.
Other key parts include the 74LVC245 and LM3940. By type, the board carries 29 resistors, 23 diodes, 19 ICs, 16 capacitors and 10 connectors.
From the project
Cores ===== RTF's Cores Use at your own risk. Welcome to my galaxy of cores. Contained in the directories are IP cores, source code for digital circuits. Also included are documentation, test benches, and software samples.
Main components on the ISA FPGA CPU
ISA FPGA CPU bill of materials (BOM)
98 components, 21 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 12 | 74LVC245 | SOIC-20W_7.5x12.8mm_P1.27mm | U1, U2, U3, U4, U5, U6, U9, U10 +4 |
| 2 | CONN_30X2 | PinSocket_2x30_P2.54mm_Vertical | U7, U8 |
| 2 | CONN_6x2 | PinSocket_2x06_P2.54mm_Horizontal | U11, U12 |
| 1 | CONN_6x2 | PinHeader_2x06_P2.54mm_Vertical | U13 |
| 1 | LM3940 | LMxx | U14 |
| 1 | CONN_20X2 | PinHeader_2x20_P2.54mm_Horizontal | U19 |
| 3 | CONN_2 | PinHeader_1x02_P2.54mm_Vertical | P1, P8, P10 |
| 2 | CONN_8X2 | PinHeader_2x08_P2.54mm_Vertical | P2, P9 |
| 1 | CONN_5X2 | PinHeader_2x05_P2.54mm_Vertical | P3 |
| 2 | CONN_7 | PinSocket_1x07_P2.54mm_Vertical | P4, P7 |
| 1 | CONN_6 | PinSocket_1x06_P2.54mm_Vertical | P5 |
| 1 | CONN_2X2 | PinHeader_2x02_P2.54mm_Vertical | P6 |
| 1 | 10k | R_Array_SIP10 | RR1 |
| 19 | ZPDxx | D_DO-35_SOD27_P10.16mm_Horizontal | D2, D3, D5, D6, D8, D9, D11, D12 +11 |
| 4 | LED | D_DO-35_SOD27_P10.16mm_Horizontal | D28, D29, D30, D31 |
| 15 | 0.1 | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C3, C4, C5, C6, C7, C8 +7 |
| 1 | 10uF | CP_Radial_D7.5mm_P2.50mm | C9 |
| 1 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 5 | 10K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3, R4, R5, R50 |
| 16 | 200 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R23, R24, R25, R26, R31, R32, R33, R34 +8 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | 100 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R35, R36, R37, R51, R52, R53, R54 |
ISA FPGA CPU design files
The KiCad project lives in the robfinch/Cores repository on GitHub; these links point at the commit this page was built from.
ISA FPGA CPU: common questions
How big is the ISA FPGA CPU PCB?
The ISA FPGA CPU measures 263.9 × 114.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ISA FPGA CPU?
98 components, from 21 distinct parts. The full bill of materials is listed on this page.
Where can I download the ISA FPGA CPU design files?
From the robfinch/Cores repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the ISA FPGA CPU design in my own project?
The repository has no license, so all rights stay with robfinch. Use it as a reference, and ask the author before reusing the design.
