WMSIC Electronic Components

WCH CH347T

ModelCH347T
PackageTSSOP-20
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 CH347T
Type
WCH
Minimum package
72 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WCH
Electronic Component
CH347T
Electronic Component
1
Package
TSSOP-20
Electronic Component
USB Converter IC
Electronic Component
0.075g
Electronic Component
1
Channel Count
2
Features
FIFO; Programmable; Built-in Clock Generator;; positions
Electronic Component
BM0257625982
Operating Temperature
40℃~+85℃
Operating Voltage
3.6V;3V;3.3V
Electronic Component
USB UART; USB SPI; USB I2C; USB JTAG
Data
9Mbps
USB
USB 2.0

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

CH347T 产品概述

一、产品简介

CH347T 是南京沁恒(WCH)推出的一款通用 USB 转串行接口控制器,封装为 TSSOP-20,面向嵌入式调试与外设接口转换场景。器件支持多种串行总线协议的桥接转换,适用于设备调试、在线编程和外设扩展等应用。

二、主要特性

  • 支持 USB 2.0 协议,提供可靠的主机端连接能力;
  • 可配置为 USB 转 UART、USB 转 SPI、USB 转 I2C、USB 转 JTAG 等多种接口模式;
  • 双通道设计(2 通道),可同时或独立工作;
  • 数据速率可达 9 Mbps;
  • 工作电压支持 3.6V / 3.3V / 3.0V 多种选项,便于与不同电平系统直接连接;
  • 工作温度范围 -40℃ 至 +85℃,满足工业级温度需求。

三、接口与功能

CH347T 提供灵活的引脚复用策略,两个通道可分别配置为 UART、SPI、I2C 或 JTAG,通过软件或寄存器配置切换工作模式。UART 支持常见波特率配置,SPI 支持主从模式以及多种时序配置,I2C 支持标准与快速模式,JTAG 用于芯片级调试与下载。

四、电气与环境规格

  • 推荐工作电压:3.0V / 3.3V / 3.6V;
  • 最高数据速率:9 Mbps(具体吞吐视协议与主机驱动而定);
  • 环境温度:-40℃ ~ +85℃,符合工业级应用需求;
  • 封装热特性与电源滤波需按数据手册建议设计以保证稳定性。

五、封装与布局建议

TSSOP-20 小外形便于 PCB 集成。设计时建议:

  • USB D+/D- 走等长差分线并靠近接口终端完成屏蔽接地;
  • 在电源引脚放置 0.1 µF 和 1 µF 陶瓷旁路电容,靠近芯片引脚;
  • 对 USB 信号线与外部总线加入 TVS/ESD 保护;
  • 对 I2C 添加必要的上拉电阻,UART/SPI 引脚注意 IO 电平匹配。

六、典型应用场景

  • 嵌入式系统开发板的串口调试与固件下载;
  • 外设接口扩展(通过 USB 将 MCU 或 FPGA 与多种外设桥接);
  • 生产测试、在线编程与 JTAG 调试平台;
  • 工业数据采集与通信转换设备。

七、开发与支持

WCH 通常提供相应的数据手册、参考原理图、驱动程序与开发工具包以加速产品集成。建议在设计前获取最新 datasheet 与应用笔记,按照厂商推荐的硬件连接与驱动版本进行验证,以保证系统兼容性与性能。若需大批量应用,请联系供应商确认质量认证与长期可供货性。

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