Orange Crab
About the Orange Crab PCB
Orange Crab is an open source FPGA PCB design by openconcepts-ar, published on GitHub under the Custom license license. It is a 6-layer board measuring 51.2 × 25.8 mm, with 153 components from 56 distinct parts.
Its main chip is the LFE5U-85F-8MG285I, from the FPGA family. Other key parts include the EA3036CQBR, TLV62569APDRLR, MT41K64M16TW-107:J TR, SI5351A-B-GTR and W25Q128JVPIQ. By type, the board carries 75 capacitors, 46 resistors, 8 ICs, 8 connectors, 7 inductors and 2 jumpers.
From the project
Here are the design files for the current 11 boards of this project:
Here are the design files for the current 11 boards of this project:
Processing boards: CPU board ECP5 FPGA board * Spartan-6 FPGA board
Adapter boards: eDP adapter board VGA adapter & connector LVDS adapters single and dual channel DVI adapter * DVI passive adapter
Debugging boards: DVI receiver Touch splitter * I/O board
It features: C906 64-bit RISC-V CPU @1GHz (22nm manufacturing process) Integrated 64MB DDR2 RAM Small size, breadboard compatible SD card socket to store media assets 2 USB-C connectors with Host and OTG (Host/Device) functions, respectively Video output connector…
Main components on the Orange Crab
Orange Crab bill of materials (BOM)
153 components, 56 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | EA3036CQBR RY1303 or EA3036 | QFN-20-1EP_3x3mm_P0.4mm_EP1.65x1.65mm | U1 |
| 1 | TLV62569APDRLR TLV62569APDRL | SOT-563 | U2 |
| 1 | LFE5U-85F-8MG285I ECP5 | csBGA_132 | U3 |
| 1 | MT41K64M16TW-107:J TR MT41K64M16TW-107_J-TR | BGA-96_9.0x13.0mm_Layout2x3x16_P0.8mm | U4 |
| 1 | SI5351A-B-GTR Si5351A-B-GT | MSOP-10_3x3mm_P0.5mm | U5 |
| 1 | W25Q128JVPIQ | WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm | U6 |
| 1 | NCP115AMX250TCG | OnSemi_XDFN4-1EP_1.0x1.0mm_EP0.52x0.52mm | U7 |
| 1 | TPS51206DSQR TPS51206 | WSON-10-1EP_2x2mm_P0.4mm | U8 |
| 1 | XL7EL89COI-111YLC-27M 27MHz | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | Conn_01x6_Male | PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | Conn_01x04_Male | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | PRT-12807 JTAG | Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J6 |
| 2 | DF12NB(3.0)-30DS-0.5V(51) Conn_02x15_Odd_Even | DF12NB3030DP05V51 | J7, J8 |
| 1 | TF-018 TF TF-018 1.5mm | TF-SMD_TF-018 | J9 |
| 1 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | J10 |
| 2 | SolderJumper_3_Bridged12 | SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP1, JP2 |
| 1 | OT252048MJBA4SL | Oscilator_2.5x2.0 | OSC1 |
| 1 | PTS810SJM250SMTRLFS SW_Push | SW_SPST_PTS810 | SW1 |
| 2 | GT-USB-7010ASV USB_C_Receptacle_USB2.0 | USB_C_Receptacle_G-Switch_GT-USB-7010ASV | USBD1, USBH1 |
Show 36 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MHPA1010RGBDT LED_ARGB | 0404LED_RGB | D1 |
| 1 | PMEG4020EPK,315 D_Schottky | U-DFN1608-2_L1.6-W0.8-RD | D2 |
| 3 | BLM15AG601SN1D 600R | L_0402_1005Metric | FB1, FB2, FB3 |
| 4 | 2.2uH | Murata_DFE201612P-2R2M=P2 | L1, L2, L3, L4 |
| 24 | GRM033R61C103KA12D 10nF | C_0201_0603Metric | C1, C2, C5, C14, C19, C25, C27, C38 +16 |
| 1 | LMK107BBJ106MALT 10uF | C_0603_1608Metric | C3 |
| 30 | CL03A104KQ3NNNC 100nF | C_0201_0603Metric | C4, C6, C9, C15, C16, C20, C26, C29 +22 |
| 5 | GRM155R60J106ME44D 10uF | C_0402_1005Metric | C7, C8, C11, C17, C18 |
| 1 | CL03A224MQ3NNNC 0.22uF | C_0201_0603Metric | C10 |
| 4 | GRM155R61A475MEAAD 4.7uF | C_0402_1005Metric | C12, C28, C46, C47 |
| 1 | GRM033R61C103KA12D 100pF | C_0201_0603Metric | C13 |
| 6 | JMK105C6105KV-F 1uF | C_0402_1005Metric | C21, C22, C34, C35, C36, C37 |
| 2 | GRM188R60J226MEA0D 22uF | C_0603_1608Metric | C23, C24 |
| 1 | CL10A475KP8NNNC 4.7uF | C_0603_1608Metric | C71 |
| 4 | RC0201FR-07100KL 100k | R_0201_0603Metric | R1, R13, R14, R25 |
| 1 | 22K 1% | R_0402_1005Metric | R2 |
| 1 | RC0201FR-070RL 0R | R_0201_0603Metric | R3 |
| 7 | RC0201FR-074K7L 4.7K | R_0201_0603Metric | R4, R21, R22, R23, R24, R26, R27 |
| 3 | RC0201FR-07100KL 100k 1% | R_0201_0603Metric | R5, R17, R18 |
| 1 | RC0402FR-070RL 0R | R_0402_1005Metric | R6 |
| 2 | 51K | R_0201_0603Metric | R7, R8 |
| 4 | 12K | R_0201_0603Metric | R9, R10, R11, R12 |
| 1 | 120K 1% | R_0402_1005Metric | R15 |
| 1 | 82K 1% | R_0402_1005Metric | R16 |
| 1 | RC0402FR-07240RL 240R | R_0402_1005Metric | R19 |
| 1 | RC0201FR-071K5L 1.5K | R_0201_0603Metric | R20 |
| 1 | 10K | R_0201_0603Metric | R28 |
| 1 | 0402WGF2103TCE 210K 1% | R_0402_1005Metric | R29 |
| 1 | 84.5K 1% | R_0201_0603Metric | R30 |
| 2 | 22 | R_0402_1005Metric | R31, R32 |
| 1 | RC0201FR-07100KL 15k | R_0201_0603Metric | R33 |
| 1 | RC0201FR-07100KL 4.7k | R_0201_0603Metric | R34 |
| 4 | RC0201FR-074K7L 15 | R_0201_0603Metric | R35, R36, R38, R39 |
| 1 | RC0201FR-074K7L 75 | R_0201_0603Metric | R37 |
| 6 | WA04X49R9FTL 50R | R_Array_Convex_4x0402 | RN1, RN2, RN3, RN4, RN5, RN6 |
| 1 | 4D02WGJ0103TCE 10K | R_Array_Convex_4x0402 | RN7 |
Orange Crab design files
The KiCad project lives in the openconcepts-ar/accel2d repository on GitHub; these links point at the commit this page was built from.
Orange Crab: common questions
What microcontroller does the Orange Crab use?
The Orange Crab is built around the LFE5U-85F-8MG285I, from the FPGA family.
How big is the Orange Crab PCB?
The Orange Crab measures 51.2 × 25.8 mm, has 6 copper layers and is 1.6 mm thick.
How many components are on the Orange Crab?
153 components, from 56 distinct parts. The full bill of materials is listed on this page.
Where can I download the Orange Crab design files?
From the openconcepts-ar/accel2d repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Orange Crab 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.
Can I test firmware for the Orange Crab 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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