

Emmc key
Open source Micro SD card to eMMC Adapter
- Size
- 16.8 × 30 mm
- Copper layers
- 4
- Thickness
- 0.7 mm
- Parts
- 7
- Nets
- 19
- Pads
- 168
- Tracks, vias
- 1,327, 51
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 15 Apr 2021
- Updated
- 14 Jun 2022
Overview
Emmc key is an open-source printed circuit board by NebraLtd, from the NebraLtd/microSD-eMMC repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 16.8 × 30 mm with 7 parts on 19 nets, routed with 1,327 tracks and 51 vias.
Its parts include 3 capacitors and 1 IC.
README
hardware/README.mdMicro SD card to eMMC Adapter Hardware KiCad Design


Parts
7| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3 |
| 1 | EMMC Module | emmc_key:BGA153N50P14X14_1150X1300X80 | U1 |
| 1 | Micro_SD_Edge_Conn | emmc_key:MICRO_SD_EDGE | B1 |
| 1 | NEBRA | emmc_key:NEBRA_LOGO | LG1 |
| 1 | String_hole | MountingHole:MountingHole_2.2mm_M2 | H1 |
Questions
How big is the Emmc key PCB?
It measures 16.8 × 30 mm and has 4 copper layers, 0.7 mm thick.
What parts does the Emmc key use?
7 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Emmc key KiCad files?
From the NebraLtd/microSD-eMMC repository on GitHub, at the commit this page was made from: the board is hardware/emmc_key.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Emmc key design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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