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ProtoA

X65·schematic·protoA/protoA.kicad_pcb

ProtoA PCB layout, top view — open source RP2040/RP2350 board by X65
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About the ProtoA PCB

ProtoA is an open source RP2040/RP2350 PCB design by X65, published on GitHub. It is a 4-layer board measuring 76.8 × 54 mm, with 39 components from 18 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W65C816S6PG-14, 4677, SN74LVC02APWR, SN74LVC139APWR and SN74LVC245APWR. By type, the board carries 15 capacitors, 9 ICs, 9 resistors and 6 connectors.

From the project

X65 hardware schematic

Main components on the ProtoA

RP2040W65C816S6PG-144677SN74LVC02APWRSN74LVC139APWRSN74LVC245APWR

ProtoA bill of materials (BOM)

39 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RP2040
RP2040-PICO30
Olimex
U1
1
W65C816S6PG-14
W65C816SxP
WDC
U2
2
4677
ESP-PSRAM64H
Adafruit
U3, U4
1
SN74LVC02APWR
74LVC02
TI
U5
1
SN74LVC139APWR
74LVC139
TI
U6
3
SN74LVC245APWR
74LVC245
TI
U7, U8, U9
1
10118194-0001LF
PWR_OUT
Amphenol FCI
J1
1
EXT
J2
1
DATA_BUS
J3
1
MEM_DBG
J4
1
SS-53000-001
CPU_DBG
Stewart Connector / Bel
J5
1
70246-0801
PIX
Molex
J6
7
CL10A225KP8NNNC
2u2
Samsung
C1, C3, C5, C7, C9, C12, C15
8
CL05B104KO5VPNC
100n
Samsung
C2, C4, C6, C8, C10, C11, C13, C14
2
ERJ-2GEJ221X
220R
Panasonic
R1, R2
4
ERJ-2GEJ563X
56k
Panasonic
R3, R4, R5, R6
2
ERJ-2RKF22R0X
22R
Panasonic
R8, R9
1
EXB-2HV331JV
330R
Panasonic
RN1

ProtoA design files

The KiCad project lives in the X65/schematic repository on GitHub; these links point at the commit this page was built from.

ProtoA: common questions

What microcontroller does the ProtoA use?

The ProtoA is built around the RP2040, from the RP2040/RP2350 family.

How big is the ProtoA PCB?

The ProtoA measures 76.8 × 54 mm, has 4 copper layers and is 1.58 mm thick.

How many components are on the ProtoA?

39 components, from 18 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 ProtoA design files?

From the X65/schematic repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the ProtoA design in my own project?

The repository has no license, so all rights stay with X65. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ProtoA 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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