MAIN
About the MAIN PCB
MAIN is an open source Microchip SAM PCB design by BarrettT123, published on GitHub. It is a 6-layer board measuring 174.6 × 124.6 mm, with 354 components from 75 distinct parts.
Its main chip is the SAMD51PXXA, from the Microchip SAM family. Other key parts include the SN74LV1T126DCKRG4, LTC4367HDD-TRPBF, REF3133AIDBZR, MAX17634BATP+ and AP63203WU-7. By type, the board carries 154 resistors, 85 capacitors, 31 diodes, 27 ICs, 14 connectors and 9 transistors.
From the project
Files and photos related to my work on the Tartarus Project of the Space Hardware Club
Main components on the MAIN
MAIN bill of materials (BOM)
354 components, 75 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74LV1T126DCKRG4 | SOT65P210X110-5N | IC2 |
| 1 | LTC4367HDD-TRPBF | DD_8_ADI | U1 |
| 1 | REF3133AIDBZR | LT1460KCS3_3_3_TRMPBF | U2 |
| 1 | MAX17634BATP+ | MAX17634BATP | U3 |
| 1 | AP63203WU-7 | AP63203WU-7_DIO | U4 |
| 1 | AP63201WU-7 | AP63203WU-7_DIO | U5 |
| 2 | NAU7802SGI | NAU7802SGI | U6, U7 |
| 8 | MCP9601T-E/MX | MCP9601T_E_MX | U8, U10, U12, U14, U16, U18, U20, U22 |
| 8 | SN74LVC1G32DSF2 | DSF6 | U9, U11, U13, U15, U17, U19, U21, U23 |
| 1 | USBLC6-2SC6 | USBLC_6 | U24 |
| 1 | GD25Q64ETIGR | WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4mm | U25 |
| 1 | SAMD51PXXA | SAMD51P20A-AF | U$1 |
| 1 | SI7252DP-T1-GE3 | TRANS_SI7942DP-T1-E3 | Q1 |
| 8 | 2N7002K | 2N7002K_ONS | Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 |
| 1 | 32.7680kHz | WE-XTAL_IQXC-90 | Y1 |
| 4 | B14B-PASK-1 (LF)(SN) B14B-PASK-1__LF__SN_ | B14BPASK1LFSN | J1, J12, J13, J14 |
| 2 | 2601-3102 | Molex_2x2_1724480004 | J2, J3 |
| 2 | B05B-PASK-1 | CONN_B05B-PASK-1_JST | J4, J5 |
| 1 | FTSH-105-X-X-DV-007-P-X | SAMTEC_FTSH-105-01-X-D-007-K | J6 |
| 1 | USB4085-GF-A_REVB | GCT_USB4085-GF-A_REVB | J7 |
Show 55 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MSD-4-A | CUI_MSD-4-A | J8 |
| 2 | B07B-PASK-1 | CONN_B07B-PASK-1_JST | J9, J10 |
| 1 | B03B-PASK-1(LF)(SN) B03B-PASK-1_LF__SN_ | B03BPASK1LFSN | J11 |
| 5 | AQ7538-08UTG | uDFN-9_3p8x1p0_LTF | CR1, CR2, CR3, CR4, CR5 |
| 8 | AGQ200A12Z AGQ200A06 | RELAY_AGQ_A_PAN_AGQ200A06 | K1, K2, K3, K4, K5, K6, K7, K8 |
| 2 | B14B-PASK-1 (LF)(SN) B14B-PASK-1__LF__SN_ | B14BPASK1LFSN | Relay_Normally_Closed1, Relay_Normally_Open1 |
| 1 | TS04-66-50-BK-100-SMT | SW_TS04-66-50-BK-100-SMT | S1 |
| 10 | B02B-PASK-1 | CONN_B02B-PASK-1_JST | TC_1, TC_2, TC_3, TC_4, TC_5, TC_6, TC_7, TC_8 +2 |
| 3 | B03B-PASK-1(LF)(SN) B03B-PASK-1_LF__SN_ | B03BPASK1LFSN | UART1, UART2, UART3 |
| 5 | LEDG | LED_0603_1608Metric | D1, D2, D3, D4, D5 |
| 8 | LEDR | LED_0603_1608Metric | D6, D7, D8, D9, D10, D11, D12, D13 |
| 2 | LEDA | LED_0603_1608Metric | D14, D15 |
| 8 | MMSD701T1G | MMSD701T1G | D16, D18, D20, D22, D24, D26, D28, D30 |
| 8 | LEDB | LED_0603_1608Metric | D17, D19, D21, D23, D25, D27, D29, D31 |
| 1 | 10uH | SRP7028A3R3M | L1 |
| 1 | 4u7H | 74438357047 | L2 |
| 1 | 8u2H | IND_CB_DRA127 | L3 |
| 1 | 10uH | L_1008_2520Metric | L4 |
| 2 | 680uF | CAP_PY-13x20_KEM_A759PY687M1HAAE026 | C2, C5 |
| 27 | 0u1 | C_0603_1608Metric | C4, C6, C16, C42, C43, C44, C45, C46 +19 |
| 3 | 10uF | C_0603_1608Metric | C7, C9, C80 |
| 1 | 2u2F | C_0603_1608Metric | C8 |
| 1 | 5600pF | C_0603_1608Metric | C10 |
| 5 | 4u7F | C_0603_1608Metric | C11, C15, C20, C25, C27 |
| 2 | 100nF | C_0603_1608Metric | C12, C13 |
| 12 | 22uF | C_0805_2012Metric | C14, C17, C18, C19, C21, C22, C23, C24 +4 |
| 1 | 100pF | C_0603_1608Metric | C30 |
| 3 | 1uF | C_0603_1608Metric | C32, C76, C87 |
| 1 | 100uF | WCAP-PTHR_10X12.5_DXL_870055675009 | C33 |
| 23 | 0u1F | C_0603_1608Metric | C34, C36, C37, C38, C40, C41, C68, C69 +15 |
| 2 | 470pF | C_0603_1608Metric | C35, C39 |
| 2 | 12pF | C_0603_1608Metric | C66, C67 |
| 1 | 5M62 | R_0603_1608Metric | R1 |
| 1 | 184K | R_0603_1608Metric | R2 |
| 1 | 115K | R_0603_1608Metric | R3 |
| 2 | 510K | R_0603_1608Metric | R4, R5 |
| 30 | 100R | R_0603_1608Metric | R6, R9, R10, R11, R12, R13, R25, R26 +22 |
| 12 | 4K | R_0603_1608Metric | R7, R8, R14, R15, R110, R113, R116, R119 +4 |
| 1 | 51K1 | R_0603_1608Metric | R16 |
| 1 | 100K | R_0603_1608Metric | R17 |
| 1 | 15K4 | R_0603_1608Metric | R18 |
| 4 | 51 | R_0603_1608Metric | R19, R20, R21, R22 |
| 8 | RB | R_0603_1608Metric | R23, R31, R39, R47, R55, R63, R71, R79 |
| 8 | RA | R_0603_1608Metric | R24, R32, R40, R48, R56, R64, R72, R80 |
| 8 | 2M | R_0603_1608Metric | R27, R35, R43, R51, R59, R67, R75, R83 |
| 8 | 487K | R_0603_1608Metric | R28, R36, R44, R52, R60, R68, R76, R84 |
| 8 | 2.49M | R_0603_1608Metric | R29, R37, R45, R53, R61, R69, R77, R85 |
| 10 | 5K1 | R_0603_1608Metric | R87, R89, R91, R93, R95, R97, R99, R101 +2 |
| 8 | 9K1 | R_0603_1608Metric | R88, R90, R92, R94, R96, R98, R100, R102 |
| 4 | 2k2 | R_0603_1608Metric | R103, R104, R106, R107 |
| 17 | 10K | R_0603_1608Metric | R105, R111, R114, R117, R120, R123, R126, R129 +9 |
| 3 | 1K | R_0603_1608Metric | R108, R109, R150 |
| 8 | 300R | R_0603_1608Metric | R112, R115, R118, R121, R124, R127, R130, R133 |
| 8 | 90K9 | R_0603_1608Metric | R137, R138, R139, R140, R141, R142, R143, R144 |
| 2 | CAY16-4702F4LF | CAY16_4702F4LF | RN1, RN2 |
MAIN design files
The KiCad project lives in the BarrettT123/Tartarus-Liquid-Rocketry-Project repository on GitHub; these links point at the commit this page was built from.
- LayoutMAIN/MAIN.kicad_pcb
- SchematicMAIN/MAIN.kicad_sch
MAIN: common questions
What microcontroller does the MAIN use?
The MAIN is built around the SAMD51PXXA, from the Microchip SAM family.
How big is the MAIN PCB?
The MAIN measures 174.6 × 124.6 mm, has 6 copper layers and is 1.629 mm thick.
How many components are on the MAIN?
354 components, from 75 distinct parts. The full bill of materials is listed on this page.
Where can I download the MAIN design files?
From the BarrettT123/Tartarus-Liquid-Rocketry-Project repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the MAIN design in my own project?
The repository has no license, so all rights stay with BarrettT123. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the MAIN without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.
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