820-1975
About the 820-1975 PCB
820-1975 is an open source Raspberry Pi PCB design by the-electron-vault, published on GitHub. It is a 2-layer board measuring 55.1 × 48.2 mm, with 532 components from 117 distinct parts.
Its main chip is the BCM2722MB1KFBG, from the Raspberry Pi family. Other key parts include the SST39WF800A-90-4C-M2QE, LTC4066EUF#PBF, SN74LVC2G66YZPR, WM8758CBGEFL and TEA1211HN. By type, the board carries 169 resistors, 152 capacitors, 107 test points, 29 inductors, 20 ICs and 14 transistors.
Main components on the 820-1975
820-1975 bill of materials (BOM)
532 components, 117 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SST39WF800A-90-4C-M2QE Microchip Technology | SST39WF800A-90-4C-M2QE | U1 |
| 1 | LTC4066EUF#PBF Linear Technology | LTC4066EUF | U2 |
| 1 | SN74LVC2G66YZPR Texas Instruments | TI-R-XBGA-N8 | U3 |
| 1 | WM8758CBGEFL Wolfson Microelectronics | WM8758CBGEFL | U5 |
| 1 | TEA1211HN Philips Semiconductors | VQFN-32-0.5 | U6 |
| 1 | LM34910SD Texas Instruments | DPR0010A | U7 |
| 5 | SN74LVC1G32YZPR Texas Instruments | TI-YZP0005 | U8, U11, U13, U14, U19 |
| 1 | BCM2722MB1KFBG Broadcom | BCM2722MB1KFBG | U9 |
| 1 | PCF50607HN/23E/N1 Philips Semiconductors | VQFN-48-0.4 | U10 |
| 1 | PP5021C-TDF PortalPlayer | PP5021C-TDF | U12 |
| 3 | ISL59110IEZ-T7 Intersil | ISL59110IEZ | U15, U16, U18 |
| 1 | K4M56163PG-BG75 Samsung Electronics | K4M56163PG | U17 |
| 1 | MAX4845ELT Maxim Integrated | MAXIM-6-uDFN | U31 |
| 1 | TPS61061YZF Texas Instruments | TI-S-XBGA-N8 | U280 |
| 2 | CMLT3904E Central Semiconductor Corp | SOT563 | Q1, Q280 |
| 1 | MMDT3946-7-F Diodes Incorporated | SOT-363 | Q2 |
| 5 | CMLDM7002A Central Semiconductor Corp | SOT563 | Q3, Q8, Q14, Q17, Q45 |
| 3 | NTS4101PT1G ON Semiconductor | SOT-323 | Q4, Q9, Q11 |
| 1 | BSS84DW-7-F Diodes Incorporated | SOT-363 | Q5 |
| 1 | BC847BV Nexperia USA Inc. | SOT563 | Q12 |
Show 97 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RTF025N03TL Rohm Semiconductor | ROHM-SOT-323T | Q24 |
| 1 | FC-145 32.7680KD-AC3 32.768kHz EPSON | FC-145 | Y2 |
| 1 | E3SB24E004000E 24MHz Hosonic Electronic Co., Ltd | XTAL-3.2x2.5 | Y3 |
| 1 | 7M-27.000MAAJ-T 27MHz TXC CORPORATION | XTAL-3.2x2.5 | Y4 |
| 1 | FH26W-13S-0.3SHW Hirose | FH26W-13S-0.3SHW | J1 |
| 1 | FF12-32A-R11AL-3H DDK Ltd. | FF12-32A-R11AL-3H | J2 |
| 1 | FH26W-35S-0.3SHW Hirose | FH26W-35S-0.3SHW | J4 |
| 1 | FF12-13A-R11AL-3H DDK Ltd. | FF12-13A-R11AL-3H | J5 |
| 1 | FF15A-5-S14A DDK Ltd. | FF15A-5-S14A | J6 |
| 1 | 30P-DOCK Foxlink | 30P-DOCK | J7 |
| 3 | GMF05LC-HS3-GS08 Vishay | VISHAY-LLP75-6A | DZP2, DZP3, DZP4 |
| 1 | 0494003.NRHF 3A Littelfuse Inc. | FUSE-0603 | F1 |
| 3 | BLM15EG221SN1D 220 Ohms @ 100 MHz Murata Electronics | FB-0402 | FL1, FL2, FL4 |
| 1 | BLM15BC241SN1D 240 Ohms @ 100 MHz Murata Electronics | FB-0402 | FL3 |
| 13 | TP | TP-SMT | PP1, PP2, PP3, PP4, PP5, PP6, PP7, PP8 +5 |
| 5 | SOP-112HST Mitsumi | SOP-11xHST | S100, S101, S102, S103, S104 |
| 107 | TP | TP-SMT | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 +99 |
| 1 | TPS79927YZUT Texas Instruments | TI-YZU0005 | VR2 |
| 3 | B0520WS-7-F Diodes Incorporated | SOD-323 | D1, D9, D10 |
| 1 | PDS340 Diodes Incorporated | PowerDI-5 | D2 |
| 1 | N/A N/A | SOD-882 | D3 |
| 1 | CDH2D09BNP-2R4MC 2.4uH Sumida | CDH2D09B | L1 |
| 9 | BLM15BC241SN1D 240 Ohms @ 100 MHz Murata Electronics | FB-0402 | L2, L3, L4, L5, L6, L7, L8, L10 +1 |
| 2 | BLM15EG221SN1D 220 Ohms @ 100 MHz Murata Electronics | FB-0402 | L9, L26 |
| 5 | BLM18KG121TN1D 120 Ohms @ 100 MHz Murata Electronics | FB-0603 | L11, L13, L14, L19, L43 |
| 1 | DLW21HN900HQ2L 90 Ohms @ 100 MHz Murata Electronics | DLW21HNxxxHQ | L12 |
| 6 | BLM15PD800SN1D 80 Ohms @ 100 MHz Murata Electronics | FB-0402 | L15, L41, L42, L200, L201, L202 |
| 2 | UNKNOWN 10uH Sumida | SUMIDA-UNKNOWN | L17, L18 |
| 2 | CDRH2D09CNP-220NC 22uH Sumida | CDRH2D09C | L29, L35 |
| 1 | VLF3010ST-220MR34 22uH TDK Corporation | VLF3010ST | L280 |
| 17 | GRM033C71A104KE14D 100nF Murata | MLCC-0201 | C1, C2, C5, C9, C12, C16, C18, C39 +9 |
| 70 | GRM033R71A103KA01D 10nF Murata | MLCC-0201 | C3, C4, C6, C7, C8, C14, C20, C25 +62 |
| 16 | GRM155C81C105ME11J 1uF Murata | MLCC-0402 | C10, C17, C19, C22, C24, C28, C30, C33 +8 |
| 1 | GCM155R71C473KA37D 47nF Murata | MLCC-0402 | C11 |
| 1 | GRM155R71H223KA12D 22nF Murata | MLCC-0402 | C13 |
| 3 | GRM0335C1E160GA01D 16pF Murata | MLCC-0201 | C15, C23, C29 |
| 3 | GRM0335C1E330JA01D 33pF Murata | MLCC-0201 | C21, C36, C128 |
| 2 | GRM033R71E102KA01J 1nF Murata | MLCC-0201 | C52, C151 |
| 2 | GRM033R71E331KA01D 330pF Murata | MLCC-0201 | C53, C54 |
| 2 | GCM155R71C104KA55J 100nF Murata | MLCC-0402 | C62, C63 |
| 3 | GCM188R71H103KA37D 10nF Murata | MLCC-0603 | C73, C75, C79 |
| 1 | GCM31CR71H225KA55L 2.2uF Murata | MLCC-1206 | C77 |
| 3 | T490T476M006ATE800 47uF KEMET | KEMET-T490T | C78, C82, C104 |
| 10 | GRM21BC71E106KE11L 10uF Murata | MLCC-0805 | C80, C85, C88, C94, C111, C114, C115, C118 +2 |
| 4 | TACL106M006RTA 10uF KYOCERA AVX | KYOCERA-TAC-L | C84, C86, C100, C101 |
| 3 | GRM188C71A475KE11D 4.7uF Murata | MLCC-0603 | C96, C136, C141 |
| 1 | CGA2B1X7S1C334K050BC 330nF TDK Corporation | MLCC-0402 | C106 |
| 1 | GRM188R71E474KA12D 470nF Murata | MLCC-0603 | C120 |
| 1 | GRM155C81A225ME44D 2.2uF Murata | MLCC-0402 | C132 |
| 1 | GCM155R71C683KA55D 68nF Murata | MLCC-0402 | C134 |
| 1 | GRM188C71E225KE11D 2.2uF Murata | MLCC-0603 | C138 |
| 2 | TMCJ0J475MTRF 4.7uF Vishay Sprague | VISHAY-TMCJ | C140, C150 |
| 2 | 595D157X0004B2T 150uF Vishay Sprague | VISHAY-595D-B | C145, C146 |
| 2 | GCM188R71E224KA55D 220nF Murata | MLCC-0603 | C281, C282 |
| 3 | CRCW0201470KFNED 470K Vishay Dale | RES-0201 | R1, R25, R67 |
| 25 | CRCW02011M00FNED 1M Vishay Dale | RES-0201 | R2, R26, R28, R33, R48, R66, R75, R88 +17 |
| 1 | CRCW02012M20FNED 2.2M Vishay Dale | RES-0201 | R3 |
| 5 | CRCW020147K0FNED 47K Vishay Dale | RES-0201 | R4, R27, R37, R112, R283 |
| 1 | CRCW0201390KFNED 390K Vishay Dale | RES-0201 | R5 |
| 9 | CRCW04020000Z0ED 0 Vishay Dale | RES-0402 | R6, R12, R17, R20, R52, R69, R70, R85 +1 |
| 1 | CRCW02014K02FNED 4.02K Vishay Dale | RES-0201 | R7 |
| 1 | RCWE0402R200FKEA 200m Vishay Dale | RES-0402 | R8 |
| 19 | CRCW02010000Z0ED 0 Vishay Dale | RES-0201 | R9, R13, R23, R39, R41, R42, R43, R47 +11 |
| 1 | CRCW0201270KFNED 270K Vishay Dale | RES-0201 | R11 |
| 1 | CRCW02012K20FNED 2.2K Vishay Dale | RES-0201 | R14 |
| 32 | CRCW0201100KFNED 100K Vishay Dale | RES-0201 | R15, R16, R32, R34, R35, R44, R51, R55 +24 |
| 11 | CRCW020110K0FNED 10K Vishay Dale | RES-0201 | R18, R19, R24, R45, R46, R53, R61, R111 +3 |
| 1 | CRCW02012K43FNED 2.43K Vishay Dale | RES-0201 | R21 |
| 5 | CRCW0201100RFKED 100 Vishay Dale | RES-0201 | R22, R190, R191, R192, R193 |
| 2 | CRCW0201220RFKED 220 Vishay Dale | RES-0201 | R29, R31 |
| 5 | CRCW0201220KFNED 220K Vishay Dale | RES-0201 | R30, R62, R63, R79, R87 |
| 2 | CRCW02013K00FNED 3K Vishay Dale | RES-0201 | R36, R282 |
| 1 | CRCW020124K9FNED 24.9K Vishay Dale | RES-0201 | R38 |
| 2 | CRCW0201680RFKED 680 Vishay Dale | RES-0201 | R40, R80 |
| 1 | CRCW040210M0FKEDC 10M Vishay Dale | RES-0402 | R49 |
| 5 | CRCW02011K00FNED 1K Vishay Dale | RES-0201 | R50, R54, R60, R146, R360 |
| 1 | CRCW02014K70FNED 4.7K Vishay Dale | RES-0201 | R56 |
| 2 | CRCW020110R0FNED 10 Vishay Dale | RES-0201 | R57, R142 |
| 1 | CRCW02015K60FNED 5.6K Vishay Dale | RES-0201 | R59 |
| 1 | CRCW02016K04FNED 6.04K Vishay Dale | RES-0201 | R68 |
| 3 | CRCW04021K00FKED 1K Vishay Dale | RES-0402 | R71, R76, R99 |
| 4 | CRCW020175R0FNED 75 Vishay Dale | RES-0201 | R72, R81, R104, R145 |
| 1 | CRCW020151K0FNED 51K Vishay Dale | RES-0201 | R73 |
| 2 | CRCW0201150RFKED 150 Vishay Dale | RES-0201 | R74, R98 |
| 1 | CRCW0201107KFNED 107K Vishay Dale | RES-0201 | R77 |
| 1 | CRCW020166K5FNED 66.5K Vishay Dale | RES-0201 | R78 |
| 3 | CRCW020133R0FNED 33 Vishay Dale | RES-0201 | R84, R89, R90 |
| 4 | CRCW020118K0FKED 18K Vishay Dale | RES-0201 | R100, R101, R102, R103 |
| 1 | CRCW02012K00FNED 2K Vishay Dale | RES-0201 | R109 |
| 1 | CRCW0201150KFNED 150K Vishay Dale | RES-0201 | R110 |
| 1 | CRCW020125K5FNED 25.5K Vishay Dale | RES-0201 | R113 |
| 1 | CRCW020112K0FNED 12K Vishay Dale | RES-0201 | R114 |
| 2 | CRCW02013K30FNED 3.3K Vishay Dale | RES-0201 | R115, R116 |
| 2 | CRCW020156R0FNED 56 Vishay Dale | RES-0201 | R117, R120 |
| 1 | CRCW0201270RFKED 270 Vishay Dale | RES-0201 | R147 |
| 1 | CRCW020127R0FNED 27 Vishay Dale | RES-0201 | R291 |
| 1 | CRCW020147R0FNED 47 Vishay Dale | RES-0201 | R915 |
820-1975 design files
The KiCad project lives in the the-electron-vault/Apple repository on GitHub; these links point at the commit this page was built from.
820-1975: common questions
What microcontroller does the 820-1975 use?
The 820-1975 is built around the BCM2722MB1KFBG, from the Raspberry Pi family.
How big is the 820-1975 PCB?
The 820-1975 measures 55.1 × 48.2 mm, has 2 copper layers and is 0.84 mm thick.
How many components are on the 820-1975?
532 components, from 117 distinct parts. The full bill of materials is listed on this page.
Where can I download the 820-1975 design files?
From the the-electron-vault/Apple repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the 820-1975 design in my own project?
The repository has no license, so all rights stay with the-electron-vault. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the 820-1975 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.
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