Combo ports
About the Combo ports PCB
Combo ports is an open source STM32 PCB design by cleverfox, published on GitHub. It is a 2-layer board measuring 169.7 × 64 mm, with 127 components from 54 distinct parts.
Its main chip is the STM32F100C8Tx, from the STM32 family. Other key parts include the DS42MB200, MP2307, LMH0303 and LMH0344. By type, the board carries 46 capacitors, 37 resistors, 15 connectors, 15 inductors, 7 ICs and 7 diodes.
From the project
matrix switch for copper and fiber ports
Main components on the Combo ports
Combo ports bill of materials (BOM)
127 components, 54 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | DS42MB200 | QFN-48-1EP_7x7mm_P0.5mm_EP5.3x5.3mm_ThermalVias | U101 |
| 1 | STM32F100C8Tx | LQFP-48_7x7mm_P0.5mm | U102 |
| 1 | MP2307 | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm_ThermalVias | U103 |
| 2 | LMH0303 | QFN-16-1EP_4x4mm_P0.65mm_EP2.1x2.1mm_ThermalVias | U1801, U1901 |
| 2 | LMH0344 | QFN-16-1EP_4x4mm_P0.65mm_EP2.1x2.1mm_ThermalVias | U2201, U2301 |
| 2 | SWD | PinHeader_1x04_P1.27mm_Vertical | J101, J102 |
| 1 | out_5-6 | SATA-7_SMD | J103 |
| 1 | in_5-6 | SATA-7_SMD | J106 |
| 1 | I2C | PinHeader_1x04_P1.27mm_Vertical | J107 |
| 1 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | J108 |
| 1 | in_5-6aux_pwr | PinHeader_2x03_P2.54mm_Vertical | J111 |
| 1 | SFP1 | Connector_SFP_and_Cage | J601 |
| 1 | SFP2 | Connector_SFP_and_Cage | J701 |
| 1 | OUTn7 | BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J1801 |
| 1 | OUTp7 | BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J1802 |
| 1 | OUTn8 | BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J1901 |
| 1 | OUTp8 | BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J1902 |
| 1 | IN7 | BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J2201 |
| 1 | IN8 | BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J2301 |
| 1 | pwr | LED_0805_2012Metric | D101 |
Show 34 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | P2SFP | LED_D3.0mm_Horizontal_O1.27mm_Z2.0mm | D102 |
| 1 | P2SDI | LED_D3.0mm_Horizontal_O1.27mm_Z2.0mm | D103 |
| 1 | P1SFP | LED_D3.0mm_Horizontal_O1.27mm_Z2.0mm | D104 |
| 1 | P1SDI | LED_D3.0mm_Horizontal_O1.27mm_Z2.0mm | D105 |
| 2 | IN_CD | LED_0805_2012Metric | D2201, D2301 |
| 5 | L | L_0805_2012Metric | L101, L601, L701, L1801, L1901 |
| 1 | L | R_0805_2012Metric | L102 |
| 1 | 10uH | L_7.3x7.3_H3.5 | L103 |
| 6 | 3.9nH | R_0402_1005Metric | L1802, L1803, L1902, L1903, L2201, L2301 |
| 2 | bead | R_0805_2012Metric | L2202, L2302 |
| 1 | C_Polarized_Small | CP_EIA-6032-20_AVX-F_Pad2.25x2.35mm_HandSolder | C101 |
| 17 | 0.1uF | C_0402_1005Metric | C102, C104, C105, C106, C107, C108, C111, C602 +9 |
| 4 | 47uF | CP_EIA-6032-20_AVX-F_Pad2.25x2.35mm_HandSolder | C103, C124, C502, C601 |
| 4 | C | C_0402_1005Metric | C109, C110, C121, C122 |
| 2 | C_Small | C_0402_1005Metric | C112, C113 |
| 5 | 0.1uF | C_0805_2012Metric | C114, C115, C116, C117, C123 |
| 1 | C_Small | C_0805_2012Metric | C118 |
| 1 | 10nF | C_0805_2012Metric | C119 |
| 1 | 3.9nF | C_0402_1005Metric | C120 |
| 4 | 4.7uF | C_0805_2012Metric | C1803, C1804, C1903, C1904 |
| 6 | 1uF | C_0402_1005Metric | C2201, C2202, C2203, C2301, C2302, C2303 |
| 1 | R_Small | R_0805_2012Metric | R101 |
| 1 | 0 | R_0805_2012Metric | R102 |
| 7 | 1k | L_0402_1005Metric | R103, R106, R107, R108, R109, R2205, R2305 |
| 2 | 1k | R_0805_2012Metric | R104, R105 |
| 1 | 100k | R_0402_1005Metric | R110 |
| 1 | 6k8 | R_0402_1005Metric | R111 |
| 1 | 39k | R_0402_1005Metric | R112 |
| 1 | 15k | R_0402_1005Metric | R113 |
| 4 | 50 | R_0402_1005Metric | R1801, R1802, R1901, R1902 |
| 2 | 750 | R_0402_1005Metric | R1803, R1903 |
| 12 | 75 | R_0402_1005Metric | R1804, R1805, R1806, R1807, R1904, R1905, R1906, R1907 +4 |
| 2 | - | R_0402_1005Metric | R2203, R2303 |
| 2 | 37.4 | R_0402_1005Metric | R2204, R2304 |
Combo ports design files
The KiCad project lives in the cleverfox/sdi_matrix repository on GitHub; these links point at the commit this page was built from.
- Layoutcombo_ports.kicad_pcb
Combo ports: common questions
What microcontroller does the Combo ports use?
The Combo ports is built around the STM32F100C8Tx, from the STM32 family.
How big is the Combo ports PCB?
The Combo ports measures 169.7 × 64 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Combo ports?
127 components, from 54 distinct parts. The full bill of materials is listed on this page.
Where can I download the Combo ports design files?
From the cleverfox/sdi_matrix repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Combo ports design in my own project?
The repository has no license, so all rights stay with cleverfox. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Combo ports without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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