桂花蒸

USB-TLL serial communication module-CH340C

Overview

product description

The CH340C USB to TTL module is based on the CH340C chip. It has a built-in crystal oscillator with a maximum baud rate of up to 2Mbps. The software is compatible with the CH341 driver and has over-current protection. It leads to the corresponding communication interface and power interface. The communication interface has an indicator light to indicate the work. status, stable communication and small size.

Features

Full speed USB driver, compatible with USB2.0
Hardware full-duplex serial port, built-in transceiver buffer
Support baud rate 50bps~2Mbps
Output TTL level 3.3V, compatible with 5V IO level

Pin function table

symbol	describe
TxD	Serial data output port
RXD	Serial data input port
GND	Ground pin
3V3	3.3V power output pin (up to 250mA)
5V	5V power output pin (up to 500mA)
RTS	MODEM contact output signal, request to send
DTR	MODEM contact output signal, data terminal is ready

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

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.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-23 08:49:15

GA and CAN controller MCP2515 design inertial navigation system CAN bus interface.pdf
GA and CAN controller MCP2515 design inertial navigation system CAN bus interface.pdf
Optimizing Your Automotive USB Circuits for Short-to-Battery Protection – Part 2
Reprinted from: deyisupport As the Type-C USB connector becomes the new standard in the consumer space, USB is finding more solutions in automotive infotainment systems. When designing for the highest
ARM Development Program
ARM Development Program
GD32L233C-START Development Board Evaluation: Introduction to the Development Board (I)
[i=s]This post was last edited by emmnn on 2022-1-16 22:47[/i]Preface At the end of the year, I had nothing to do and was just slacking off on the forum at work. I happened to see a review activity an
9B96 development board to make browser login interface
I am trying to make a browser login interface for the 9B96 development board. I have read a lot of information but still can't figure it out. I hope someone can give me some advice. Thank you.
Students from Chengdu Hairong Embedded College, please come in~~~
Have you ever been to Chengdu Hairong Embedded College for training? How is the employment class I mentioned? Can you give me some advice? I want to go for training, because if I learn embedded system

Datasheet More

Circuits More