MartinFowler

[Verified successfully] CP2102 USB to TTL solution verification board

Overview

CP2102 is a USB to serial port chip from SILICON LABS. This chip has a built-in 3.3V voltage regulator, simple peripheral circuit, and better stability than the CH340 series chips (of course the price is also higher)

Use the chip's internal 3.3V voltage regulator
Full IO extraction (mostly useful, but "full IO" is easier to pronounce)
0.5A 0805 resettable fuse
TX/RX indicator light
5V/3V3 output with diode protection
The bottom pad of the QFN chip is designed to reach the back for easy soldering! Updated on 2020/6/16, proofing & soldering completed, pictures have been added

Design Files

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Update:2025-06-19 02:27:10

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