Nref ports one
About the Nref ports one PCB
Nref ports one is an open source PCB design by cetola, published on GitHub. It is a 4-layer board measuring 88 × 35.9 mm, with 146 components from 52 distinct parts.
Other key parts include the TPS7A0533PDBZ, TLV320AIC3100, TXS0108EPW, SN74AVC1T45 and TPD4E02B04DQA. By type, the board carries 59 capacitors, 44 resistors, 15 ICs, 12 connectors, 10 inductors and 4 diodes.
It belongs with the audio and power & battery designs in this gallery.
From the project
The original Open Hardware laptop, reloaded.
The original Open Hardware laptop, reloaded.
MNT Reform Next takes the MNT Reform family's modular approach a few steps further: The motherboard doesn't have any exterior ports, instead it breaks out all important signals in groups to FPC and JST-SH headers. The connectivity to the outside is implemented via user-exchangable Port Boards that increase repairability, customizability and future proofing of interfaces. The motherboard provides the system controller (RP2040 based), main (multi chemistry) LiFePO4/LiIon charger buck/boost controller, main 5V and 3V3 power rails and the SOM…
Main components on the Nref ports one
Nref ports one bill of materials (BOM)
146 components, 52 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS7A0533PDBZ Texas Instruments | SOT-23 | U1 |
| 1 | TLV320AIC3100 Texas Instruments | VQFN-32-1EP_5x5mm_P0.5mm_EP3.5x3.5mm | U2 |
| 1 | TXS0108EPW Texas Instruments | TSSOP-20_4.4x6.5mm_P0.65mm | U3 |
| 1 | SN74AVC1T45 Texas Instruments | SOT-23-6 | U4 |
| 3 | TPD4E02B04DQA Texas Instruments | USON-10_2.5x1.0mm_P0.5mm | U5, U6, U7 |
| 1 | FUSB302BMPX ON Semi | WQFN-14-1EP_2.5x2.5mm_P0.5mm_EP1.45x1.45mm | U8 |
| 1 | PCA9557RGVR Texas Instruments | Texas_RSA_VQFN-16-1EP_4x4mm_P0.65mm_EP2.7x2.7mm | U9 |
| 1 | LMR51430 Texas Instruments | SOT-23-6 | U10 |
| 1 | TPS66021YBGR Texas Instruments | YBG0028_TEX | U11 |
| 1 | TLV75518PDBV Texas Instruments | SOT-23-5 | U12 |
| 1 | TMUXHS4212RKSR TMUXHS4212 Texas Instruments | Texas-VQFN20_2.5x4.5mm_RKS | U13 |
| 1 | EQCO5X31C0-I/6NX EQCO5X31C0-I_6NX Microchip | QFN50P400X400X100-21N-D | U14 |
| 1 | LP5907MFX-1.2 Texas Instruments | SOT-23-5 | U15 |
| 1 | CONN_HEAD CUI | CUI_SJ-43614-SMT | J1 |
| 1 | DM3AT-SF-PEJM5 Hirose | microSD_HC_Hirose_DM3AT-SF-PEJM5 | J2 |
| 1 | 09452812561 HARTING | 09452812561 | J3 |
| 1 | USB_C_Receptacle Molex | USB_C_Receptacle_Molex_105450-0101 | J4 |
| 2 | Conn_01x10_Pin Hirose | Hirose_FH12-10S-0.5SH_1x10-1MP_P0.50mm_Horizontal | J5, J9 |
| 1 | Conn_01x14_Pin Hirose | Hirose_FH12-14S-0.5SH_1x14-1MP_P0.50mm_Horizontal | J6 |
| 1 | Conn_01x12_Pin Hirose | Hirose_FH12-12S-0.5SH_1x12-1MP_P0.50mm_Horizontal | J7 |
Show 32 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PWR JST | JST_SH_SM09B-SRSS-TB_1x09-1MP_P1.00mm_Horizontal | J8 |
| 1 | CONN_SPK Molex | Molex_PicoBlade_53261-0271_1x02-1MP_P1.25mm_Horizontal | J10 |
| 1 | POWSW JST | JST_SH_SM02B-SRSS-TB_1x02-1MP_P1.00mm_Horizontal | J11 |
| 1 | SBU JST | JST_SH_SM02B-SRSS-TB_1x02-1MP_P1.00mm_Horizontal | J12 |
| 1 | SW_Push Omron | SW_SPST_B3U-3000P | SW1 |
| 1 | TG111-MSC13LF Pulse | Transformer_Ethernet_HALO_TG111-MSC13 | TR1 |
| 3 | LED_Red Everlight | LED_0603_1608Metric | D1, D2, D3 |
| 1 | LED_Blue Everlight | LED_0603_1608Metric | D4 |
| 7 | 100@100MHz 3A Murata | L_0402_1005Metric | FB3, FB4, FB5, FB6, FB7, FB8, FB9 |
| 2 | 15uH YJYCOIN | L_Taiyo-Yuden_NR-30xx | L1, L2 |
| 1 | 6.8uH cijang | L_Taiyo-Yuden_NR-30xx | L4 |
| 1 | 1nF Yageo | C_0402_1005Metric | C1 |
| 33 | 0.1uF Samsung | C_0402_1005Metric | C2, C3, C4, C5, C7, C9, C10, C13 +25 |
| 7 | 10uF Samsung | C_0603_1608Metric | C6, C11, C12, C16, C30, C41, C47 |
| 7 | 1uF Samsung | C_0402_1005Metric | C8, C43, C44, C48, C49, C53, C54 |
| 5 | 47uF Taiyo Yuden | C_1210_3225Metric | C17, C21, C39, C40, C46 |
| 2 | 22uF Samsung | C_0805_2012Metric | C19, C20 |
| 1 | DNP Samsung | C_0402_1005Metric | C22 |
| 1 | 470nF Samsung | C_0402_1005Metric | C25 |
| 2 | 4.7uF Samsung | C_0402_1005Metric | C50, C51 |
| 4 | 1k Yageo | R_0402_1005Metric | R1, R2, R32, R33 |
| 4 | 75 1% Panasonic | R_0402_1005Metric | R3, R4, R5, R6 |
| 5 | 33 Yageo | R_0402_1005Metric | R7, R8, R9, R10, R11 |
| 3 | 100k Yageo | R_0402_1005Metric | R12, R16, R35 |
| 3 | 2.2k Yageo | R_0402_1005Metric | R13, R30, R31 |
| 3 | 10k Yageo | R_0402_1005Metric | R14, R19, R38 |
| 17 | 0 Panasonic | R_0402_1005Metric | R15, R17, R18, R20, R21, R22, R24, R26 +9 |
| 1 | 75k 1% Uni-Royal | R_0402_1005Metric | R25 |
| 1 | 432k 1% Yageo | R_0402_1005Metric | R27 |
| 1 | 20k 1% Yageo | R_0402_1005Metric | R28 |
| 1 | 13.7k Uni-Royal | R_0402_1005Metric | R37 |
| 1 | 0 Yageo | R_0603_1608Metric | R40 |
Nref ports one design files
The KiCad project lives in the cetola/reform-next-mirror repository on GitHub; these links point at the commit this page was built from.
Nref ports one: common questions
How big is the Nref ports one PCB?
The Nref ports one measures 88 × 35.9 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Nref ports one?
146 components, from 52 distinct parts. The full bill of materials is listed on this page.
Where can I download the Nref ports one design files?
From the cetola/reform-next-mirror repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Nref ports one design in my own project?
The repository has no license, so all rights stay with cetola. Use it as a reference, and ask the author before reusing the design.
More boards in reform-next-mirror
RP2040/RP2350Nref motherboard
122.6 × 75.9 mm269 parts6LNo license0
Nref ports two
87.5 × 40.2 mm137 parts4LNo license0
Reform camera
46 × 46 mm114 parts4LNo license0
Hdmi edp2
43.5 × 32.5 mm93 parts4LNo license0
Nref batterypack
75 × 17 mm83 parts4LNo license0
Nref usb3-redriver
54.5 × 32 mm40 parts4LNo license0
Nref wifi m2
66 × 24 mm28 parts4LNo license0
Nref wifi
66 × 33 mm23 parts2LNo license0
Trackpad IQS9150
105.5 × 53.3 mm10 parts2LNo license0
Nref batterypack backside
75 × 17 mm3 parts4LNo license0
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