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1.8-12V serial port board

Overview

This solution adopts a compatible design with CP2102 and CP2105. The 2102 is used in single serial port mode, and the 2105 is used in dual serial port mode. It has 3 levels of 1.8V, 3.3V and 5V, with fuse and ESD protection. Tantalum capacitors are added to ensure stable power supply. Symmetrical layout, minimal design, clear lighting status~~~~Abandoned CP210X for various reasons and chose Hecotech's HT42B256. The function was added because of the company's needs. The 12VTTL conversion rate cannot be too high. 12V has no built-in input and requires an external powered by

Design Files

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Update:2025-08-03 07:53:01

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