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D6-candidate

EthanKahn08·example-pcb·work/d6-candidate.kicad_pcb

D6-candidate PCB layout, top view — open source RP2040/RP2350 board by EthanKahn08

About the D6-candidate PCB

D6-candidate is an open source RP2040/RP2350 PCB design by EthanKahn08, published on GitHub. It is a 4-layer board measuring 55 × 30 mm, with 60 components from 26 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q16JVSSIQ, TLV1117LV33DCYR, TPS22918DBVR and 74LVC125APW. By type, the board carries 23 capacitors, 21 resistors, 6 diodes, 5 ICs, 2 connectors and 2 switches.

From the project

Design-stage RP2040 USB-C microSD reader: KiCad hardware, verification evidence, UART bring-up firmware, and assembly plan. Unbuilt and untested.

A custom RP2040 board intended to expose a removable microSD card as a USB drive. It uses 2 MiB external firmware flash, a 12 MHz crystal, USB-C, and a switched SPI card interface.

Status: design stage. No board has been assembled or bench tested. Hardware file checks pass. UART bring-up firmware is included; SD and USB Mass Storage firmware still need implementation.

D6-candidate, from the project README
From the project README

Main components on the D6-candidate

RP2040W25Q16JVSSIQTLV1117LV33DCYRTPS22918DBVR74LVC125APW

D6-candidate bill of materials (BOM)

60 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RP2040
Raspberry Pi
U1
1
W25Q16JVSSIQ
Winbond
U2
1
TLV1117LV33DCYR
Texas Instruments
U3
1
TPS22918DBVR
Texas Instruments
U4
1
74LVC125APW
Nexperia
U7
1
ABM8-272-T3
12MHz CL10pF
Abracon
Y1
1
USB4105-GF-A
USB-C USB2
GCT
J1
1
DM3AT-SF-PEJM5
microSD / detect
Hirose
J2
1
Y97LT25B2DBFP
BOOT
Littelfuse / C&K
SW1
1
Y97LT25B2DBFP
RESET
Littelfuse / C&K
SW2
1
USBLC6-2SC6
STMicroelectronics
D1
4
PESD5V0U2BT
Nexperia
D2, D4, D5, D6
1
LTST-C190KGKT
GREEN
Lite-On
D7
2
GRM1885C1H150JA01D
15pF
Murata
C1, C2
14
GRM188R71H104KA93D
100nF
Murata
C3, C4, C5, C6, C7, C8, C9, C10 +6
4
GRM188R71E105KA12D
1uF
Murata
C11, C12, C16, C22
1
GRM188R61A475KE15D
4.7uF
Murata
C17
1
C0603C472K5RACTU
4.7nF
KEMET
C19
1
GRM32ER61A476KE20L
47uF
Murata
C20
3
CRCW060310K0FKEA
10k
Vishay
R1, R18, R19
Show 6 more
QtyPartRefs
4
CRCW06031K00FKEA
1k
Vishay
R2, R8, R20, R21
2
CRCW06035K10FKEA
5.1k
Vishay
R3, R4
2
CRCW060327R0FKEA
27
Vishay
R5, R6
2
CRCW0603100KFKEA
100k
Vishay
R7, R17
3
CRCW060333R0FKEA
33
Vishay
R9, R10, R11
5
CRCW060347K0FKEA
47k
Vishay
R12, R13, R14, R15, R16

D6-candidate design files

The KiCad project lives in the EthanKahn08/example-pcb repository on GitHub; these links point at the commit this page was built from.

D6-candidate: common questions

What microcontroller does the D6-candidate use?

The D6-candidate is built around the RP2040, from the RP2040/RP2350 family.

How big is the D6-candidate PCB?

The D6-candidate measures 55 × 30 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the D6-candidate?

60 components, from 26 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the D6-candidate design files?

From the EthanKahn08/example-pcb repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the D6-candidate design in my own project?

The repository has no license, so all rights stay with EthanKahn08. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the D6-candidate without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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