WMSIC Electronic Components

WCH CH347F

ModelCH347F
PackageQFN-28(4X4)
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 Option 175480

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
WCH CH347F
Type
WCH
Minimum package
490 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WCH
Electronic Component
CH347F
Electronic Component
1
Package
QFN-28(4X4)
Electronic Component
USB Converter IC
Electronic Component
0.03g
Electronic Component
1
Channel Count
2
Features
FIFO; Programmable;; positions
Electronic Component
BM0264602981
Operating Voltage
3V~3.6V
Operating Current
38mA
Electronic Component
USB UART; USB SPI; USB SWD; USB I2C; USB JTAG
Data
480Mbps
Static Current
260uA

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

CH347F产品概述

CH347F是南京沁恒微电子(WCH)推出的USB 2.0转多协议接口芯片,集成USB转UART、SPI、SWD、I2C、JTAG等核心功能,单芯片实现双独立通道接口转换,广泛适用于嵌入式调试、外设扩展、通信接口转换等场景,兼具高集成度、低功耗与高速传输优势。

一、核心功能特点

CH347F的核心优势在于多协议集成与双通道并行支持,具体功能包括:

  1. 兼容USB 2.0协议,支持高速(480Mbps)、全速(12Mbps)传输模式,适配主流PC/主机接口;
  2. 双独立通道设计,可同时实现多种接口组合转换(如通道1转UART、通道2转SPI),满足多外设同步通信需求;
  3. 覆盖主流调试与通信接口:
    • 调试类:JTAG(支持2/4/5线)、SWD(适配ARM Cortex系列MCU调试);
    • 通信类:UART(全双工,支持宽波特率范围)、SPI(主/从模式)、I2C(主模式,支持100kHz/400kHz速率);
  4. 无需额外复杂外围电路,单芯片即可完成多接口转换,简化系统设计流程。

二、关键性能参数

CH347F的性能参数针对低功耗、高速传输优化,核心指标如下:

参数类别 具体参数 应用意义 USB协议版本 USB 2.0 兼容高速/全速传输,适配主流主机接口 最高数据速率 480Mbps(USB高速) 满足高带宽数据采集与传输需求 独立通道数 2个 支持多接口同时工作,提升系统效率 工作电压范围 3V~3.6V 适配3.3V主流嵌入式系统供电,无需额外电源转换 典型工作电流 38mA 高速传输下功耗可控,适合功耗敏感场景 典型静态电流 260uA 低功耗待机,适配电池供电的便携设备 封装规格 QFN-28(4×4mm) 超小封装,节省PCB空间,适合小型化产品

三、封装与供电特性

CH347F采用QFN-28(4×4mm)封装,引脚间距0.5mm,体积紧凑,可直接集成于小型化产品(如便携调试器、嵌入式模块)。供电方面,芯片支持3V~3.6V单电源供电,无需升压/降压电路,可直接与3.3V MCU、传感器等外设匹配,进一步降低电源设计复杂度。

四、典型应用场景

CH347F凭借多协议集成与低功耗优势,广泛应用于以下场景:

  1. 嵌入式调试工具:作为ARM Cortex系列MCU的调试接口(SWD/JTAG),替代传统专用调试器,支持在线调试与程序下载;
  2. USB转多接口模块:实现USB转双UART、USB转SPI+I2C等组合,扩展PC/主机的外设接口数量;
  3. 物联网设备通信:为低功耗IoT节点提供USB转I2C/SPI接口,实现与云端或上位机的双向通信;
  4. 测试测量仪器:作为仪器的USB接口扩展,支持多通道数据采集与实时传输;
  5. 便携电子设备:低静态电流适合电池供电的手持调试器、外设适配器等产品。

五、开发支持与兼容性

CH347F兼容WCH官方提供的Windows/Linux/macOS驱动程序,无需额外开发驱动;同时配套提供参考设计电路、示例代码与调试工具,降低开发门槛,缩短产品上市周期。

CH347F通过高集成度、低功耗与多协议支持,为嵌入式系统、通信接口扩展等场景提供了高效、低成本的解决方案,是替代传统多芯片方案的理想选择。

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.