ETH1LCR3
About the ETH1LCR3 PCB
ETH1LCR3 is an open source STM32 PCB design by BehrensG, published on GitHub. It is a 6-layer board measuring 160 × 100 mm, with 532 components from 171 distinct parts.
Its main chip is the STM32H743VITx, from the STM32 family. Other key parts include the LAN8742A, LC03-3.3, SN74LV1T34DBV, 74LVC1G74DP and 24LC08B-E/MS. By type, the board carries 203 resistors, 180 capacitors, 60 ICs, 20 transistors, 20 inductors and 19 diodes.
Main components on the ETH1LCR3
ETH1LCR3 bill of materials (BOM)
532 components, 171 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LAN8742A | VQFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm_ThermalVias | U201 |
| 2 | LC03-3.3 | SOIC-8_3.9x4.9mm_P1.27mm | U202, U203 |
| 8 | SN74LV1T34DBV | SOT-23-5_HandSoldering | U301, U504, U706, U707, U708, U807, U808, U809 |
| 2 | 74LVC1G74DP | TSSOP-8_3x3mm_P0.65mm | U302, U507 |
| 1 | STM32H743VITx | LQFP-100_14x14mm_P0.5mm | U303 |
| 1 | 24LC08B-E/MS | MSOP-8_3x3mm_P0.65mm | U304 |
| 1 | REG103GA-5 | SOT-223-6 | U401 |
| 1 | REG103GA-3.3 | SOT-223-6 | U402 |
| 1 | LT1946A | MSOP-8-1EP_3x3mm_P0.65mm_EP1.95x2.15mm_ThermalVias | U403 |
| 1 | TEL5-2411 | CONV_TEL_5-2411 | U404 |
| 1 | LT1611 | SOT-23-5_HandSoldering | U405 |
| 1 | SN74LVC1G04DBV | SOT-23-5_HandSoldering | U501 |
| 2 | AD9834 | TSSOP-20_4.4x6.5mm_P0.65mm | U502, U503 |
| 3 | LMH6644MT | TSSOP-14_4.4x5mm_P0.65mm | U505, U802, U1501 |
| 2 | TLV3501AIDBV | SOT-23-6_Handsoldering | U506, U702 |
| 2 | LMH6618MKE | SOT-23-6_Handsoldering | U601, U701 |
| 1 | ADG1604BRUZ | TSSOP-14_4.4x5mm_P0.65mm | U602 |
| 3 | LMH6720MF | SOT-23-6_Handsoldering | U603, U604, U605 |
| 1 | 74HCT4051PW | TSSOP-16_4.4x5mm_P0.65mm | U703 |
| 2 | SN74LVC1G3157DB | SOT-23-6_Handsoldering | U704, U705 |
Show 151 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ADS1246IPWR | TSSOP-16_4.4x5mm_P0.65mm | U709 |
| 1 | REF2025 | SOT-23-5 | U710 |
| 1 | 74LVC1G3157DB | SOT-23-6_Handsoldering | U801 |
| 2 | OPA727AIDG | MSOP-8_3x3mm_P0.65mm | U803, U804 |
| 10 | AQY221R2S | SOP-4_3.8x4.1mm_P2.54mm | U805, U806, U901, U903, U1001, U1003, U1101, U1103 +2 |
| 4 | AD8099ARDZ | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm_ThermalVias | U902, U1002, U1102, U1202 |
| 1 | ULN2003A | TSSOP-16_4.4x5mm_P0.65mm | U1502 |
| 1 | TXB0104PW | TSSOP-14_4.4x5mm_P0.65mm | U1601 |
| 1 | ADuM5402 | SOIC-16W_7.5x10.3mm_P1.27mm | U1602 |
| 1 | 74AC125 | TSSOP-14_4.4x5mm_P0.65mm | U1603 |
| 1 | SI5618A | SOT-23 | Q401 |
| 12 | MMBT3904 | SOT-23 | Q402, Q801, Q802, Q803, Q804, Q806, Q902, Q1002 +4 |
| 5 | BSS123 | SOT-23 | Q403, Q901, Q1001, Q1101, Q1201 |
| 2 | BFR106 | SOT-23 | Q805, Q807 |
| 1 | SG-5032CAN | Oscillator_SMD_SeikoEpson_SG8002LB-4Pin_5.0x3.2mm | X501 |
| 1 | NX5032GA-25 | NX5032GA | Y201 |
| 1 | NX5032GA-16 | NX5032GA | Y301 |
| 1 | 20021111-00010T4LF | PinHeader_2x05_P1.27mm_Vertical | J301 |
| 3 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J302, J801, J802 |
| 4 | 5227161-1 | TE_5227161-1 | J1301, J1302, J1303, J1304 |
| 1 | DIN41612_02x32_AC | Socket_DIN41612-CaseC1-AC-Male-64Pin-2rows | J1501 |
| 1 | 1812L075/33DR | Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F401 |
| 1 | Heatsink | 960-19-12-S-AB-0 | HS101 |
| 5 | UMS05-1A80-75D | Relay_StandexMeder_UMS | K801, K802, K803, K804, K805 |
| 2 | G5V-2-DC5 | Relay_DPDT_Omron_G5V-2 | K1401, K1402 |
| 6 | HE3621A0510 | HE360_x-5050462-8 | K1501, K1502, K1503, K1504, K1505, K1506 |
| 1 | 3266W-1-103LF | Potentiometer_Bourns_3266W_Vertical | RV501 |
| 1 | 3266W-1-500LF | Potentiometer_Bourns_3266W_Vertical | RV801 |
| 1 | Wuerth_749013011A | Transformer_Ethernet_Wuerth_749013011A | TR201 |
| 1 | YELLOW | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D201 |
| 1 | GREEN | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D202 |
| 1 | ASMB-MTB1-0B3A2 | LED_Avago_PLCC4_3.2x2.8mm_CW | D301 |
| 1 | BZX84C10LT1G | SOT-23 | D401 |
| 2 | MBR0520 | D_SOD-123F | D402, D404 |
| 5 | 1N4148W | D_SOD-123 | D403, D501, D802, D1401, D1402 |
| 3 | NSVRB751V40T1G | D_SOD-323_HandSoldering | D701, D702, D703 |
| 2 | BAV199 | SOT-23 | D801, D803 |
| 1 | BAV99 | SOT-23 | D1601 |
| 1 | SMBJ5.0A | D_SMB | D1602 |
| 1 | SD36C-01FTG | D_SOD-323_HandSoldering | D1603 |
| 2 | 742792031 | L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB201, FB301 |
| 4 | MLZ1608DR47DT | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L401, L405, L406, L701 |
| 5 | MLZ2012M100WT | L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | L402, L403, L408, L507, L508 |
| 1 | SRN3010TA-2R2M | SRN3010TA | L404 |
| 1 | DRQ73-220-R | DRQ73 | L407 |
| 6 | MLZ2012M330WT | L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | L501, L502, L503, L504, L505, L506 |
| 1 | CW252016-R33G | CW252016 | L1601 |
| 4 | 8p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C201, C204, C310, C312 |
| 83 | 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C202, C208, C209, C210, C211, C212, C301, C302 +75 |
| 1 | 470p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C203 |
| 13 | 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C205, C206, C207, C314, C418, C702, C703, C706 +5 |
| 2 | 1n/1kV | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C213, C214 |
| 1 | 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C305 |
| 2 | 2u2 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C315, C316 |
| 1 | 10u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C317 |
| 13 | 4u7 | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C401, C414, C415, C417, C421, C524, C525, C725 +5 |
| 6 | 2u2 | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C402, C403, C404, C407, C408, C416 |
| 6 | 10n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C405, C406, C504, C505, C814, C819 |
| 1 | 270p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C409 |
| 3 | 33u/12V | CP_EIA-3528-21_Kemet-B_Pad1.50x2.35mm_HandSolder | C411, C412, C422 |
| 1 | 470u/12V | CP_Elec_10x10.5 | C413 |
| 1 | 1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C419 |
| 1 | 1n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C420 |
| 4 | 220p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C513, C514, C519, C520 |
| 3 | 82p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C515, C516, C616 |
| 1 | 68p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C521 |
| 3 | 47p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C522, C601, C1609 |
| 6 | 1p5 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C523, C604, C906, C1006, C1106, C1206 |
| 2 | JZ200 | C_Trimmer_Voltronics_JZ | C603, C607 |
| 1 | 240p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C609 |
| 6 | 22p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C614, C707, C905, C1005, C1105, C1205 |
| 1 | 100p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C711 |
| 4 | 100n/C0G | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C717, C718, C720, C721 |
| 2 | 15p/C0G | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C723, C724 |
| 1 | JZ100 | C_Trimmer_Voltronics_JZ | C815 |
| 1 | 6p8 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C817 |
| 1 | 180p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C818 |
| 4 | 3p9 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C904, C1004, C1104, C1204 |
| 1 | 1p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1203 |
| 24 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R201, R204, R310, R316, R403, R404, R407, R414 +16 |
| 3 | 1k5 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R202, R315, R704 |
| 1 | 12k1 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R203 |
| 6 | 560 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R205, R206, R901, R1001, R1101, R1201 |
| 1 | 1M/1kV | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R207 |
| 2 | 75/1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R208, R209 |
| 26 | 51 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R210, R211, R212, R213, R303, R402, R412, R522 +18 |
| 4 | 3k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R301, R705, R720, R721 |
| 3 | 2k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R302, R606, R707 |
| 2 | 110k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R304, R309 |
| 15 | 100k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R305, R308, R406, R409, R411, R523, R723, R724 +7 |
| 1 | 3k6 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R306 |
| 3 | 1k6 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R307, R716, R717 |
| 7 | 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R311, R507, R811, R829, R830, R1503, R1604 |
| 2 | 47 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R312, R1605 |
| 1 | 56k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R313 |
| 1 | 160k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R314 |
| 7 | 4k7 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R317, R318, R323, R324, R501, R506, R512 |
| 2 | 0 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R320, R322 |
| 1 | 27k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R405 |
| 1 | 2k4 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R408 |
| 2 | 12k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R410, R706 |
| 2 | 30k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R413, R415 |
| 7 | 3k9 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R502, R516, R517, R518, R519, R520, R521 |
| 1 | 6k8 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R503 |
| 4 | 390 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R504, R505, R510, R511 |
| 4 | 620 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R508, R509, R513, R514 |
| 1 | 7k5 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R515 |
| 1 | 300 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R524 |
| 1 | 47k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R601 |
| 6 | 510 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R604, R609, R619, R625, R703, R810 |
| 1 | 10 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R605 |
| 3 | 1k3 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R607, R617, R624 |
| 1 | 620/0.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R608 |
| 1 | 150/0.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R610 |
| 1 | 91/0.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R611 |
| 2 | 30/0.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R612, R613 |
| 1 | 1k2 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R615 |
| 1 | 100/0.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R616 |
| 1 | 200/0.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R618 |
| 1 | 75 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R620 |
| 1 | 43/0.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R622 |
| 1 | 390/0.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R623 |
| 1 | 30k/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R701 |
| 1 | 120k/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R702 |
| 1 | 10/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R708 |
| 1 | 51/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R709 |
| 1 | 240/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R710 |
| 3 | 1k/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R711, R819, R820 |
| 1 | 5k1/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R712 |
| 1 | 20k/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R713 |
| 1 | 51k/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R714 |
| 1 | 75k/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R715 |
| 2 | 100/.05% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R718, R719 |
| 2 | 100/.01% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R801, R904 |
| 2 | 1k/.01% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R803, R1004 |
| 2 | 10k/.01% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R805, R1104 |
| 2 | 100k/.01% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R807, R1204 |
| 1 | 200k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R815 |
| 3 | 100 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R816, R817, R1603 |
| 4 | 2k/.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R821, R822, R825, R826 |
| 1 | 240 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R828 |
| 3 | 33 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R832, R835, R836 |
| 4 | 20k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R903, R1003, R1103, R1203 |
| 1 | 14k7 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1602 |
| 1 | 51R1 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1606 |
| 1 | EXB-V8V330JV | R_Array_Concave_4x0603 | RN201 |
| 1 | EXB-V8V103JV | R_Array_Concave_4x0603 | RN202 |
| 1 | EXB-V8V102JV | R_Array_Concave_4x0603 | RN301 |
| 1 | MPMT2001AT | SOT-23 | RN501 |
| 1 | 51 | R_Array_Convex_4x0603 | RN701 |
| 1 | 51 | R_Array_Convex_2x0603 | RN702 |
ETH1LCR3 design files
The KiCad project lives in the BehrensG/ETH1LCR3 repository on GitHub; these links point at the commit this page was built from.
ETH1LCR3: common questions
What microcontroller does the ETH1LCR3 use?
The ETH1LCR3 is built around the STM32H743VITx, from the STM32 family.
How big is the ETH1LCR3 PCB?
The ETH1LCR3 measures 160 × 100 mm, has 6 copper layers and is 1.6 mm thick.
How many components are on the ETH1LCR3?
532 components, from 171 distinct parts. The full bill of materials is listed on this page.
Where can I download the ETH1LCR3 design files?
From the BehrensG/ETH1LCR3 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the ETH1LCR3 design in my own project?
The repository has no license, so all rights stay with BehrensG. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the ETH1LCR3 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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