Iapx432-sbc
About the Iapx432-sbc PCB
Iapx432-sbc is an open source FPGA PCB design by quasiengineer, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 108 components from 38 distinct parts.
Its main chip is the ICE40, from the FPGA family. Other key parts include the 74LVC16T245DGGRG4, 870-61LPS12836A5TQL, 454-W25Q16JVSSIQ, LX7167ACLD and TPS63002. By type, the board carries 61 capacitors, 23 resistors, 10 ICs, 4 diodes, 4 inductors and 3 connectors.
From the project
Board to run iAPX 432 GDP
Here is shown only FPGA part of the board:
Archive with gerber files and drill locations could be found here
Here is compiled bitsream. You can flash it to memory chip via SPI programmer (there is 6-pin header for that).
Main components on the Iapx432-sbc
Iapx432-sbc bill of materials (BOM)
108 components, 38 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LVC16T245DGGRG4 Address/data bus | TSSOP-48_4.4x9.7mm_P0.4mm | IC1 |
| 1 | 74LVC16T245DGGRG4 Control signals | TSSOP-48_4.4x9.7mm_P0.4mm | IC3 |
| 1 | 870-61LPS12836A5TQL SRAM | PQFP-100_14x20mm_P0.65mm | U1 |
| 1 | ICE40 | TQFP-144_20x20mm_P0.5mm | U2 |
| 1 | 454-W25Q16JVSSIQ Bitstream flash | SOIC-8_5.3x5.3mm_P1.27mm | U3 |
| 2 | LX7167ACLD LX7167ACLD-TR | DFN-8-1EP_2x2mm_P0.5mm_EP0.8x1.6mm | U4, U5 |
| 1 | TPS63002 | VSON-10-1EP_3x3mm_P0.5mm_EP1.2x2mm | U6 |
| 1 | 43201 | 3M_QUIP64 | U7 |
| 1 | 43202 | 3M_QUIP64 | U8 |
| 1 | MMBT3904 | SOT-23 | Q1 |
| 1 | 250MHZ 250Mhz | XLH536250.000000I | Y1 |
| 1 | 656-DX07S016JA1R1500 Type-C | USB_C_Receptacle_JAE_DX07S016JA1R1500 | J1 |
| 1 | 649-1012938190604BLF FPGA programming / UART | PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | 649-67997-200HLF Power | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | 640-SWT0010015016SSA FPGA Reset | SWT0010-015016SSA | SW1 |
| 1 | 710-150080RS75000 Red | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | 1N5819 | D_SOD-123 | D2 |
| 2 | 710-150080GS75000 Green | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D3, D4 |
| 1 | 81-BLM18BD152SH1D Ferrite_Bead | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 1 | 652-SRP6530A-1R5M 1u5, 5A | SRP6530A-1R5M | L1 |
Show 18 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 652-SRP2512-R68M 0u68, 5.5A | L_1008_2520Metric_Pad1.43x2.20mm_HandSolder | L2, L3 |
| 46 | 100N 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8 +38 |
| 6 | 22U 22u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C29, C30, C32, C33, C44, C45 |
| 3 | 10U 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C34, C40, C41 |
| 4 | 1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C38, C39, C46, C47 |
| 1 | 22P 22p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C42 |
| 1 | 33P 33p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C43 |
| 1 | 22R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 2 | 4K7 4k7 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R18 |
| 3 | 10K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R6, R7 |
| 3 | 100R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5, R8 |
| 2 | 10 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, R10 |
| 5 | 100K 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R12, R13, R14, R19 |
| 1 | 158K 158k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15 |
| 1 | 34K8 34k8 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R16 |
| 2 | 2K2 2k2 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R20 |
| 2 | 5K1 5k1 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R21, R22 |
| 1 | 470R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23 |
Iapx432-sbc design files
The KiCad project lives in the quasiengineer/iapx432-sbc repository on GitHub; these links point at the commit this page was built from.
- Layoutpcb/iapx432-sbc.kicad_pcb
- Schematicpcb/iapx432-sbc.kicad_sch
- BOMpcb/bom.csv
Iapx432-sbc: common questions
What microcontroller does the Iapx432-sbc use?
The Iapx432-sbc is built around the ICE40, from the FPGA family.
How big is the Iapx432-sbc PCB?
The Iapx432-sbc measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Iapx432-sbc?
108 components, from 38 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 Iapx432-sbc design files?
From the quasiengineer/iapx432-sbc 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 Iapx432-sbc design in my own project?
The repository has no license, so all rights stay with quasiengineer. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Iapx432-sbc without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug FPGA firmware against it before you order a PCB.
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