CH9340 - USB to UART

Datasheet Summary

Description

Power supply voltage input, requires an external 0.1uF power decoupling capacitor.

Features

l Full-speed USB device interface, compatible with USB V2.0. l Based on USB CDC, used to upgrade the original serial peripheral devices, or expand additional serial UART through USB. l Free-driver, serial.

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CH9340 USB to UART by ETC - Datasheet Preview — Datasheet preview – CH9340

Datasheet Details

Part number	CH9340
Manufacturer	ETC
File Size	110.25 KB
Description	USB to UART
Datasheet	CH9340 Datasheet
Additional preview pages of the CH9340 datasheet.

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Full PDF Text Transcription

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CH9340 Datasheet 1 USB to UART Chip CH9340 Datasheet Version: 1 http://wch.cn 1. Introduction CH9340 is a USB bus converter chip, which converts USB to serial UART. In serial UART mode, CH9340 provides common MODEM signals, which are used to expand UART interface for computer, or directly upgrade common serial device to USB bus. Computer Or other USB host USB CH9340 convert chip UART/RS232/RS485 2. Features l Full-speed USB device interface, compatible with USB V2.0. l Based on USB CDC, used to upgrade the original serial peripheral devices, or expand additional serial UART through USB. l Free-driver, serial applications are totally compatible under the Windows OS, without any modification.

Published: Jan 16, 2025 |