WMSIC Electronic Components

WCH CH340N

ModelCH340N
PackageSOP-8
BrandWCH
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WCH CH340N
Type
WCH
Minimum package
4000 托盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WCH
Electronic Component
CH340N
Electronic Component
1
Package
SOP-8
Electronic Component
USB Converter IC
Electronic Component
0.11g
Electronic Component
1
Features
Programmable; Built-in Clock Generator;; positions
Electronic Component
BM0075407370
Operating Temperature
20℃~+70℃
Operating Voltage
3.3V;5V
Electronic Component
USB
Data
2Mbps
USB
USB 2.0
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

CH340N 产品概述

一、概述

CH340N 是由南京沁恒(WCH)公司生产的一款高性能 USB 转串口的桥接芯片。该芯片广泛应用于计算机和各种外部设备之间的串行通信,作为 PC 端与微控制器、传感器和其他串口设备之间的接口,CH340N 以其出色的性能和优良的兼容性受到广泛欢迎。

二、主要特性

  1. 转换功能:CH340N 能够实现 USB 接口与 UART 串口之间的转换,支持 baud rate 决定的波特率范围,满足大多数应用需求。

  2. 驱动支持:该芯片兼容 Windows、Linux 和 Mac OS 操作系统,极大地方便了用户的使用,不需要复杂的驱动安装过程。同时,WCH 提供了相应的驱动程序,使得开发者可以快速实现相关功能。

  3. 工作电压范围:CH340N 的工作电压范围广泛,通常在 3.3V 到 5V 之间,适用于多种电源供电方案,满足不同设备的需求。

  4. 高速串行接口:该芯片支持高达 12 Mbps 的数据传输速率,适合需要高带宽传输的应用场景。

  5. SOP-8 封装:CH340N 在 SOP-8 封装中,体积小,便于手工焊接或自动贴片生产,同时脚位布局合理,方便电路设计。

  6. 内置电路:CH340N 内置了上拉电阻等多种电路,以简化外部电路设计。这种设计减少了外部元件需求,降低了整体成本。

三、应用场景

由于其独特的功能和优势,CH340N 被广泛应用于各类电子产品的设计和开发中,常见的应用场景包括:

  1. DIY 项目:电子爱好者和开发者在自制的 Arduino、树莓派等开发板上,通过 CH340N 实现 USB 与串口的连接,进行程序上传和串口通信。

  2. 工业控制:在与 PLC(可编程逻辑控制器)、传感器和执行器的通信中,CH340N 可作为串口通信的桥梁,确保可靠的数据传输。

  3. 消费电子:在许多消费电子产品如打印机、扫描仪、摄像头等设备中,CH340N 作为 USB 接口的串口转换器,简化了设计,提高了产品兼容性。

  4. 物联网设备:在许多物联网设备中,CH340N 使得设备能够通过 USB 与服务器或其他设备进行数据交互,实现联网控制和管理。

四、性能规格

  • 工作温度范围:-40°C 到 +85°C,适合于恶劣环境下的工作。
  • 转速范围:支持 1200bps 到 12Mbps 的波特率,满足不同数据传输需求。
  • 数据位:支持 5、6、7、8 数据位配置,可以灵活适应不同的通信需求。
  • 停止位:支持 1 或 2 个停止位的配置,确保数据的可靠性。

五、总结

CH340N 是一款集成度高、价格低廉且兼容性强的 USB 转串口桥接芯片,适用于各种电子产品设计和开发。凭借其广泛的应用场景和出色的性能,CH340N 不仅在业余爱好者中受到喜爱,还在工业控制及物联网领域有着重要的位置。南京沁恒通过这款芯片在 USB 串口转换市场上实现了强有力的竞争,使得这一领域的产品更为丰富,推动了整体行业的发展。

无论是专业开发人员还是电子爱好者,CH340N 是实现 USB 串口通信应用中不可或缺的优秀选择。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.