6 layers70 × 71.1 mm
2 layers29.8 × 40.6 mm
Documentation | Source | Join us on Matrix!
- Size
- 29.8 × 40.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 8
- Pads
- 82
- Tracks, vias
- 201, 41
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 24 Oct 2024
- Updated
- 8 Oct 2026
Overview
Dummy is an open-source printed circuit board by linuxboot, from the linuxboot/flashkeeper repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 29.8 × 40.6 mm with 14 parts on 8 nets, routed with 201 tracks and 41 vias.
It is built around the W25Q128JVPIQ and W25Q128JVSIQ. Its parts include 6 capacitors, 5 ICs and 2 connectors.
Main components
2
W25Q128JVPIQ
WSON-8-EP(5x6)-40℃~+85℃ 100,000 cycles 10uA 120ms@(32KB) 128Mbit 133MHz 2.7V~3.6V 20 Years Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection、Power lock protection SPI WSON-8-EP(5x6) NOR FLASH ROHSWinbond ElecNOR FLASH
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
README
README.mdFlashkeeper
Manage and Protect your SPI Flash Chip!
Documentation | Source | Join us on Matrix!
Flashkeeper is a family of open-hardware add-ons for standard SOIC-8 and WSON-8 SPI NOR flash chips (as are commonly used for firmware storage in PCs and other electronics), providing functionality for write-protection control, SPI bus breakout, flash device emulation, reprogramming, and state validation.
Flashkeeper development takes place on the 15h.org Git forge, and is mirrored to Github as a backup. If you wish to participate in Flashkeeper development on 15h.org infrastructure, please request an account in either the Flashkeeper room or the 15h.org room on Matrix. Issues may be opened on either 15h.org or Github.
For user information, please see the documentation. For hardware source files, see hw/.
The Flashkeeper project is supported by NLnet NGI Zero Core.
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C4, C5, C6 |
| 1 | Conn_02x04 | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J1 |
| 1 | FFC | flashkeeper:TE_2328702-8 | J2 |
| 1 | Jumper_2_Open | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | W25Q128JVP | Package_SON:WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm | U3 |
| 1 | W25Q128JVP | Package_SON:WSON-8-1EP_8x6mm_P1.27mm_EP3.4x4.3mm | U5 |
| 1 | W25Q128JVS | Package_DIP:DIP-8_W7.62mm | U4 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U2 |
Questions
How big is the Dummy PCB?
It measures 29.8 × 40.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dummy use?
14 parts, built around the W25Q128JVPIQ and W25Q128JVSIQ. 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 Dummy KiCad files?
From the linuxboot/flashkeeper repository on GitHub, at the commit this page was made from: the board is hw/dummy_board/dummy.kicad_pcb and its schematic hw/adapter_soldered/breakout_wide/adapter_soldered.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dummy design in my own project?
Its repository publishes it under the GPL-3.0 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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