ECP5 BGA381 RISCV
About the ECP5 BGA381 RISCV PCB
ECP5 BGA381 RISCV is an open source FPGA PCB design by gildobjanschi, published on GitHub under the MIT license. It is a 4-layer board measuring 54.6 × 54.6 mm, with 108 components from 37 distinct parts.
Its main chip is the LFE5U-85F-8BG381C, from the FPGA family. Other key parts include the IS25LP128-JKLE, FT231XQ-R, IS66WVE4M16EBLL-70BLI and TLV62569DBVT. By type, the board carries 39 capacitors, 38 resistors, 14 diodes, 7 ICs, 4 inductors and 2 connectors.
From the project
ECP5 FPGA with 8MB PSRAM and extension header
[](https://ECP5BGA381RISCV/blob/main/ECP5_board.pdf)
In the Manage Symbol Libraries click the Project Specific Libraries tab and add: Name: ECP5BGA381RISCV and Library Path: ${ECP5BGA381RISCV}/symbols/Symbols.kicad_sym
In the Manage Footprint Libraries click the Project Specific Libraries tab and add: Name: ECP5BGA381RISCV and Library Path: ${ECP5BGA381RISCV}/footprints/Footprints.pretty
Main components on the ECP5 BGA381 RISCV
ECP5 BGA381 RISCV bill of materials (BOM)
108 components, 37 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LFE5U-85F-8BG381C Lattice Semiconductor Corporation | BGA-381_pitch0.8mm_dia0.4mm | U1 |
| 1 | IS25LP128-JKLE IS25LP128F ISSI, Integrated Silicon Solution Inc | WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm | U2 |
| 1 | FT231XQ-R FT231XQ FTDI, Future Technology Devices International Ltd | QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U3 |
| 1 | IS66WVE4M16EBLL-70BLI ISSI, Integrated Silicon Solution Inc | BGA48C75P8X6_800X600X120N | U4 |
| 3 | TLV62569DBVT Texas Instruments | SOT-23-5 | U5, U6, U7 |
| 1 | MMST2222A-7-F MMST2222A Diodes Incorporated | SOT-323_SC-70 | Q1 |
| 1 | ECS-7050MV-500-DM-TR 50MHz ECS Inc. | Oscillator_SMD_Diodes_FN-4Pin_7.0x5.0mm | Y1 |
| 1 | USB4105-GF-A-120 USB Type C GCT | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | FTS-120-02-L-DV EXT Samtec Inc. | FTS-120-02-L-DV | J2 |
| 1 | 0ZCG0075FF2C Hold 750mA Bel Fuse Inc. | Fuse_1812_4532Metric | F1 |
| 1 | PTS645SK43SMTR92 LFS User C&K | SW_SPST_PTS645 | SW1 |
| 4 | APTD1608LZGCK GREEN Kingbright | LED_0603_1608Metric | D1, D3, D10, D14 |
| 4 | APTD1608LSURCK RED Kingbright | LED_0603_1608Metric | D2, D5, D7, D11 |
| 3 | APTD1608LSYCK/J3-PF YLW Kingbright | LED_0603_1608Metric | D4, D9, D13 |
| 3 | APTD1608LVBC/D BLUE Kingbright | LED_0603_1608Metric | D6, D8, D12 |
| 1 | 78279220601 600Ohm 2A Würth Elektronik | L_0805_2012Metric | FB1 |
| 3 | DFE322512F-2R2M=P2 2.2µH Murata Electronics | L_1210_3225Metric | L1, L2, L3 |
| 17 | CL10B104KB8NNWC 100nF Samsung Electro-Mechanics | C_0603_1608Metric | C1, C3, C4, C6, C7, C8, C11, C12 +9 |
| 1 | CL10A475KP8NNNC 4.7µF Samsung Electro-Mechanics | C_0603_1608Metric | C2 |
| 2 | CL10B103KB8NNWC 10nF Samsung Electro-Mechanics | C_0603_1608Metric | C5, C9 |
Show 17 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | CL10B225KP8NNNC 2.2µF Samsung Electro-Mechanics | C_0603_1608Metric | C10, C19, C21, C26, C30, C35, C39 |
| 3 | CL10C101FB81PNC 100pF Samsung Electro-Mechanics | C_0603_1608Metric | C16, C27, C32 |
| 9 | CL10A226MP8NUNE 22µF Samsung Electro-Mechanics | C_0603_1608Metric | C17, C18, C20, C28, C29, C31, C33, C34 +1 |
| 7 | ERJ-3EKF1002V 10K Panasonic Electronic Components | R_0603_1608Metric | R1, R2, R6, R7, R8, R13, R19 |
| 4 | ERJ-3EKF4701V 4.7K Panasonic Electronic Components | R_0603_1608Metric | R3, R9, R10, R36 |
| 2 | ERJ-3EKF1101V 1.1K Panasonic Electronic Components | R_0603_1608Metric | R4, R5 |
| 4 | ERJ-3EKF7150V 715 Panasonic Electronic Components | R_0603_1608Metric | R11, R12, R25, R29 |
| 2 | ERJ-3EKF27R0V 27 Panasonic Electronic Components | R_0603_1608Metric | R14, R15 |
| 6 | ERJ-3EKF3300V 330 Panasonic Electronic Components | R_0603_1608Metric | R16, R24, R26, R28, R30, R32 |
| 3 | ERJ-3EKF7500V 750 Panasonic Electronic Components | R_0603_1608Metric | R17, R27, R31 |
| 1 | ERJ-3EKF1601V 1.6K Panasonic Electronic Components | R_0603_1608Metric | R18 |
| 1 | ERJ-3EKF1300V 130 Panasonic Electronic Components | R_0603_1608Metric | R20 |
| 1 | ERJ-3EKF1003V 100K Panasonic Electronic Components | R_0603_1608Metric | R21 |
| 2 | ERJ-3EKF5101V 5.1K Panasonic Electronic Components | R_0603_1608Metric | R22, R23 |
| 3 | ERJ-3EKF1502V 15K Panasonic Electronic Components | R_0603_1608Metric | R33, R35, R37 |
| 1 | ERJ-3EKF1802V 18K Panasonic Electronic Components | R_0603_1608Metric | R34 |
| 1 | ERJ-3EKF3301V 3.3K Panasonic Electronic Components | R_0603_1608Metric | R38 |
ECP5 BGA381 RISCV design files
The KiCad project lives in the gildobjanschi/ECP5_BGA381_RISCV repository on GitHub; these links point at the commit this page was built from.
- LayoutECP5.kicad_pcb
- SchematicECP5.kicad_sch
ECP5 BGA381 RISCV: common questions
What microcontroller does the ECP5 BGA381 RISCV use?
The ECP5 BGA381 RISCV is built around the LFE5U-85F-8BG381C, from the FPGA family.
How big is the ECP5 BGA381 RISCV PCB?
The ECP5 BGA381 RISCV measures 54.6 × 54.6 mm, has 4 copper layers and is 1.58 mm thick.
How many components are on the ECP5 BGA381 RISCV?
108 components, from 37 distinct parts. The full bill of materials is listed on this page.
Where can I download the ECP5 BGA381 RISCV design files?
From the gildobjanschi/ECP5_BGA381_RISCV repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the ECP5 BGA381 RISCV design in my own project?
Yes, under the terms of its MIT license, which gildobjanschi chose for the repository.
Can I test firmware for the ECP5 BGA381 RISCV 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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