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USB to TTL converter based on CH343P

Overview

This design uses single-sided surface-mount
0402 capacitors and resistors,
with all traces running at a 45-degree arc. All
CH343 pins are exposed.
This double-sided design is strictly prohibited from commercial use without the author's written authorization; otherwise, legal action will be taken. PS: Please refrain from criticism regarding hand-soldered components. Suggestions are welcome. Please use PCB version 1_1, which has been verified.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 01:53:59

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