Alu
About the Alu PCB
Alu 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 100 × 51.9 mm, with 78 components from 22 distinct parts.
Its main chip is the ICE5LP1K-SG48, from the FPGA family. Other key parts include the 74HC273, 74HC245, AMS1117-1.2, W25X40CLSN and 74AHC1G08. By type, the board carries 26 resistors, 22 capacitors, 11 ICs, 10 diodes, 8 connectors and 1 LED.
From the project
Project files for Ytterbium modular CPU platform and Yprog programming tool
Main components on the Alu
Alu bill of materials (BOM)
78 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ICE5LP1K-SG48 | QFN-48-1EP_7x7mm_P0.5mm_EP3.5x3.5mm_ThermalVias | U1 |
| 1 | 74HC273 | TSSOP-20_4.4x6.5mm_P0.65mm | U2 |
| 3 | 74HC245 | TSSOP-20_4.4x6.5mm_P0.65mm | U3, U6, U11 |
| 1 | AMS1117-1.2 | SOT-89-3 | U4 |
| 1 | W25X40CLSN | SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | 74AHC1G08 | SOT-23-5 | U7 |
| 2 | 74AHC1G14 | SOT-23-5 | U8, U10 |
| 1 | 74LVC2G14 | SOT-23-6 | U9 |
| 3 | Conn_01x10 | PinHeader_1x10_P2.54mm_Vertical | J1, J4, J7 |
| 2 | xR | R_0603_1608Metric | J2, J3 |
| 2 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | J5, J8 |
| 1 | Conn_02x20_Top_Bottom | PinHeader_2x20_P2.54mm_Horizontal | J6 |
| 1 | B08 | LED_BAR_08 | BAR1 |
| 1 | 1N4148WS | D_SOD-323 | D1 |
| 9 | LED | LED_0805_2012Metric | D2, D3, D4, D5, D6, D7, D8, D9 +1 |
| 6 | 10u | C_0805_2012Metric | C1, C21, C22, C23, C24, C25 |
| 16 | 100n | C_0603_1608Metric | C2, C3, C4, C5, C6, C7, C8, C9 +8 |
| 17 | R_US | R_0603_1608Metric | R1, R5, R6, R7, R8, R9, R10, R11 +9 |
| 4 | 10k | R_0603_1608Metric | R2, R3, R4, R18 |
| 3 | 1k | R_0603_1608Metric | R19, R20, R21 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10R | R_0603_1608Metric | R22 |
| 1 | 100R | R_0603_1608Metric | R24 |
Alu 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.
- Layoutpcb/pl/alu/alu.kicad_pcb
- Schematicpcb/pl/alu/alu.kicad_sch
Alu: common questions
What microcontroller does the Alu use?
The Alu is built around the ICE5LP1K-SG48, from the FPGA family.
How big is the Alu PCB?
The Alu measures 100 × 51.9 mm, has 4 copper layers and is 1.62516 mm thick.
How many components are on the Alu?
78 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the Alu 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 Alu 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 Alu 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
FPGAMainboard
82 × 400 mm176 parts4LCERN-OHL-S-2.00
Stencil
82 × 80 mm169 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