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CH330 Hardware

Jana-Marie·CH330_Hardware

CH330 Hardware PCB layout, top view — open source board by Jana-Marie
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About the CH330 Hardware PCB

CH330 Hardware is an open source PCB design by Jana-Marie, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 10 × 10 mm, with 9 components from 6 distinct parts.

Other key parts include the CH330. By type, the board carries 2 connectors, 2 diodes, 2 capacitors, 2 resistors and 1 IC.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

CH330 breakout board

I created this board because I wanted to play with the CH330N because it was supposed to be a crystal-less, <$0.35 USB UART converter in a SOIC-8 package. Since these chips were available from LCSC, I created a quick design and ordered both together.

As the IC is very small (other USB UART converters are packed in at least a QFN or SOIC-16), I didn't want the board to get much bigger. Accordingly, I developed this 10*10mm USB UART converter board with the CH330N and micro-USB. The assembly is quite fiddly, I suggest that you reflow the USB port and then solder the CH330N (and the LEDs) by…

CH330 Hardware, from the project README
From the project README

Main components on the CH330 Hardware

CH330

CH330 Hardware bill of materials (BOM)

9 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CH330
U1
1
A97800
USB_B_Micro
J1
1
WM2746
Conn_01x04_Female
J2
2
19-217/BHC-ZL1M2RY/3T
LED
Everlight
D1, D2
2
06035G104ZAT2A
100n
AVX
C1, C2
2
P220BY
220
R1, R2

CH330 Hardware design files

The KiCad project lives in the Jana-Marie/CH330_Hardware repository on GitHub; these links point at the commit this page was built from.

CH330 Hardware: common questions

How big is the CH330 Hardware PCB?

The CH330 Hardware measures 10 × 10 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CH330 Hardware?

9 components, from 6 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 CH330 Hardware design files?

From the Jana-Marie/CH330_Hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the CH330 Hardware design in my own project?

Yes, under the terms of its GPL-3.0 license, which Jana-Marie chose for the repository.

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