CH330 breakout board
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| References | Qty | Description | Manufacturer | MPN | Digikey | Mouser | RS | Newark | Farnell |
|---|---|---|---|---|---|---|---|---|---|
| C1,C2 | 2 | 0.1µF 0603 50V | AVX | 06035G104ZAT2A | 311-1344-1-ND | 603CC603KRX7R9BB104 | 1358345 | 96M1293 | 1288255 |
| D1,D2 | 2 | LED 0603 | Everlight | 19-217/BHC-ZL1M2RY/3T | 160-1183-1-ND | 859LTSTC190GKT | 6910451 | 68Y1165 | 1652108 |
| J1 | 1 | Micro USB | A97800CT-ND | 57119815681 | 6694645 | 73M8666 | 2751670 | ||
| J2 | 1 | PinHeader 4 pin | WM2746-ND | 53822292041 | 6701333 | 26H2000 | 1360132 | ||
| R1,R2 | 2 | 220R 0603 0.25W | P220BYDKR-ND | 8626833 | 85Y6302 | 2335874 | |||
| U1 | 1 | CH330 SOIC-8 | https://lcsc.com/product-detail/USB_CH330N_C108996.html |
CH330_Hardware USB-UART Converter
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 hand. If you want to order these boards, I recommend you panelize them.
The CH330N enumerates as CH340 or CH341 and its transfer speed goes up to ~2Mb/s.
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This project on Kitspace.org
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