Mainboard
About the Mainboard PCB
Mainboard is an open source FPGA PCB design by jerry-kerenzikov, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 82 × 400 mm, with 176 components from 22 distinct parts.
Its main chip is the ICE40HX4K-TQ144, from the FPGA family. Other key parts include the W25X40CLSN, AMS1117-1.2, 74LVC1G07 and 74LVC1G126. By type, the board carries 103 resistors, 46 capacitors, 16 connectors, 7 ICs, 2 LEDs and 2 diodes.
From the project
Project files for Ytterbium modular CPU platform and Yprog programming tool
Main components on the Mainboard
Mainboard bill of materials (BOM)
176 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ICE40HX4K-TQ144 | TQFP-144_20x20mm_P0.5mm | U1 |
| 1 | W25X40CLSN | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | AMS1117-1.2 | SOT-89-3 | U3 |
| 1 | 74LVC1G07 | SOT-23-5 | U4 |
| 3 | 74LVC1G126 | SOT-23-5 | U5, U6, U7 |
| 12 | Conn_02x20_Top_Bottom | PinSocket_2x20_P2.54mm_Horizontal_Top_Bottom | J1, J2, J3, J4, J5, J6, J7, J8 +4 |
| 2 | Conn_02x07_Top_Bottom | PinSocket_2x07_P2.54mm_Horizontal | J13, J16 |
| 1 | Conn_02x12_Top_Bottom | PinSocket_2x12_P2.54mm_Horizontal | J15 |
| 1 | Conn_02x16_Top_Bottom | PinHeader_2x16_P2.54mm_Horizontal | J17 |
| 2 | B08 | LED_BAR_08 | BAR1, BAR2 |
| 1 | 1N4148WS | D_SOD-323 | D1 |
| 1 | LED | LED_0805_2012Metric | D2 |
| 8 | 10u | C_0805_2012Metric | C1, C2, C19, C21, C22, C23, C24, C25 |
| 22 | 100n | C_0603_1608Metric | C3, C4, C5, C6, C7, C8, C9, C10 +14 |
| 16 | 47p | C_0603_1608Metric | C31, C32, C33, C34, C35, C36, C37, C38 +8 |
| 2 | 100R | R_0603_1608Metric | R1, R24 |
| 7 | 10k | R_0603_1608Metric | R2, R3, R4, R25, R26, R27, R28 |
| 1 | 1k2 | R_0603_1608Metric | R5 |
| 16 | R_US | R_0603_1608Metric | R6, R7, R8, R9, R10, R11, R12, R13 +8 |
| 1 | 10R | R_0603_1608Metric | R22 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 3k3 | R_0603_1608Metric | R23 |
| 75 | 1k | R_0402_1005Metric | R29, R30, R31, R32, R33, R34, R35, R36 +67 |
Mainboard design files
The KiCad project lives in the jerry-kerenzikov/ytterbium repository on GitHub; these links point at the commit this page was built from.
Mainboard: common questions
What microcontroller does the Mainboard use?
The Mainboard is built around the ICE40HX4K-TQ144, from the FPGA family.
How big is the Mainboard PCB?
The Mainboard measures 82 × 400 mm, has 4 copper layers and is 1.62516 mm thick.
How many components are on the Mainboard?
176 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mainboard design files?
From the jerry-kerenzikov/ytterbium repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mainboard design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which jerry-kerenzikov chose for the repository.
Can I test firmware for the Mainboard 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.
More boards in ytterbium
Stencil
82 × 80 mm169 parts4LCERN-OHL-S-2.00
FPGAAlu
100 × 51.9 mm78 parts4LCERN-OHL-S-2.00
8-bit register
100 × 51.9 mm65 parts4LCERN-OHL-S-2.00
Program counter
100 × 51.9 mm61 parts4LCERN-OHL-S-2.00
Memory 64K
100 × 51.9 mm59 parts4LCERN-OHL-S-2.00
Clock generator
100 × 36 mm41 parts4LCERN-OHL-S-2.00
Instruction register
100 × 31.6 mm27 parts4LCERN-OHL-S-2.00
Microinstruction counter
100 × 30 mm26 parts4LCERN-OHL-S-2.00
RP2040/RP2350Programmer
100 × 41.5 mm24 parts4LCERN-OHL-S-2.00
Similar boards
FPGABase board
GlasgowEmbedded
80 × 49 mm222 parts4L0BSD2.2k
FPGAThunderscope Rev5.3
EEVengers
122.5 × 103.5 mm817 parts6LMIT1.3k
FPGAUsb sniffer
ataradov
58.2 × 38.1 mm86 parts2LBSD-3-Clause1.3k
FPGATomu, I'm
theacodes
13 × 9.4 mm40 parts4LMIT1.1k
FPGAIcepi zero
cheyao
65 × 30 mm143 parts4LSHL-2.1828
FPGAGcvideo
ikorb
49 × 30 mm44 parts4LNo license765