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CH340B AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

CH340B product

CH340B

Specialized

USB BridgeUARTWCH

The CH340B is a highly integrated USB-to-UART bridge chip, ideal for adding serial connectivity to microcontrollers without external crystals.

Best for

  • USB-to-Serial conversion
  • MCU programming interfaces

Avoid if

  • High-speed data transfer exceeding 2Mbps

Check before use

  • V3 pin connection requirements for 3.3V vs 5V operation

Key specifications

Baud Rate
50bps - 2Mbps
Package
SOP-16
Supply Voltage
3.3V / 5V

Compliance & Environment

RoHS
RoHS Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

General

Datasheet

e3a9c8c09491e765edf3a810a586ba68.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for CH340B: 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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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

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

Design and risk insights

Questions & answers

The CH340B is a USB-to-serial UART bridge chip from WCH, designed to convert USB signals to standard asynchronous serial data.