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CH344L AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

CH344L product

CH344L

Specialized

USB BridgeUARTWCH

The CH344L is a 4-port USB-to-UART bridge chip supporting 12Mbps full-speed USB, ideal for adding multiple serial ports to embedded systems or PCs.

Best for

  • USB-to-Serial expansion
  • Industrial communication interfaces

Avoid if

  • High-speed USB 480Mbps requirements (use CH344Q instead)

Check before use

  • Ensure 3.3V power supply and correct crystal oscillator configuration

Key specifications

USB Speed
12Mbps
UART Ports
4
Voltage
3.3V

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

ConnectivityIndustrial

Datasheet

fc21363e2c097fec9b19064f143d8d8f.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for CH344L: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The CH344L is a USB-to-4-port UART bridge chip that allows computers or MCUs to communicate with up to four serial devices via a single USB connection.