【经验】沁恒CH340B USB转UART桥接口芯片的配置及注意事项

时间： 2022-12-14 来源：世强

代理服务

技术支持

现货查询

批量订货

CH340B是沁恒推出的一个USB转UART桥接口芯片，随着个人电脑升级发展，现在的计算机基本都不再提供RS232接口取而代之的是USB接口，但在工业控制、医疗仪器，等一些行业设备中对外的接口还是RS232，很多行业为了产品快速迭代支持USB接口，那么CH340B是一个很好的选择，不需要任何软件研发，只是硬件上加一颗CH340B原有的支持RS232的设备，就变成了USB接口了。

但是众所周知，USB设备都有PID和VID；VID是供应商ID，理论上每个USB供应商都有唯一的VID，而PID则是由供应商自定义的ID用来区分不同的产品。作为不同的厂家，在使用沁恒的CH340B芯片为自家设备提供USB接口支持的同事，当然也希望设备被插入电脑的时候，能够显示自家厂家的信息，而非沁恒作为厂家信息出现。

CH340B内置了EEPROM用于配置序列号厂家信息，我们今天就来说说如何去修改这些信息，首先需安装CH340B对应的VCP驱动，然后使用官网提供的“CH34xSerCfg.exe”软件进行修改，软件界面如下：

从上图可以看出和CH340B主要相关的设备厂商信息主要有如下几个部分可以配置：

Vendor ID(VID)：生产厂商ID，每个厂商的VID唯一

Product ID(PID)：产品ID，可以进行修改

Max Power(mA)：设备要求的总线电流值

Power Mode：USB电源模式可以选择总线供电模式或者自供电模式

Manufacturer String：厂商描述字符串

Product String：产品描述字符串

Serial String：产品序列号。配置产品序列号后使设备在该PC不同USB端口时串口号不变。

此软件不仅可以修改配置，也可以读取配置，当所有信息配置完成后，记得要生成对应的驱动，因为驱动是根据VID和PID来识别设备的。

发送到邮箱 |
+1 赞 0
收藏
评论 0
| 转发至：

本文由土肥圆提供，版权归世强硬创平台所有，非经授权，任何媒体、网站或个人不得转载，授权转载时须注明“来源：世强硬创平台”。

全部评论（0）

暂无评论

【经验】影响 CH340/CH341USB转串口芯片工作稳定性的几大因素及解决办法

对于如何区分CH340与CH341芯片型号与功能、芯片供电注意事项，芯片电平匹配问题、防止电流倒灌问题、晶体以及电容的选用、芯片CH340的V3引脚作用、如何提高工作稳定性和抗干扰能力等很多人还是会存在疑惑，下面由沁恒来为您一一进行解答！

2022-05-27 - 设计经验代理服务技术支持现货查询批量订货

【经验】沁恒双UART芯片CH432T 12脚HLF＃信号和1脚INT＃说明

CH432T是沁恒推出的双UART芯片，包含两个兼容16C550 的异步串口，支持半双工收发自动切换和IrDA 红外编解码，支持最高4Mbps 的通讯波特率。本文主要说一下12脚HLF＃信号和1脚INT＃这两个信号引脚。

2023-03-08 - 设计经验代理服务技术支持现货查询批量订货

【经验】如何在GCC环境下新建沁恒CH32F103系列MCU的工程模板

沁恒推出的CH32F103系列MCU，采用了Cortex-M3内核，提供丰富的通讯接口和控制单元，广泛使用在控制、连接等嵌入式领域。开发沁恒CH32F103时，开发人员通常选择KEIL或IAR等开发集成工具，这里介绍一下使用GCC开发环境新建工程。

2023-01-14 - 设计经验代理服务技术支持现货查询批量订货

CH芯片的引脚图器件库和封装图

型号- CH366Q,CH378Q,CH451L,CH463Q,CH451S,CH32F205RBT6,CH452A,CH331A,CH246D,CH331G,CH343G,CH32F203C8T6,CH355L,CH573F,CH367L,CH440G,CH365P,CH450K,CH353L,CH462Q,CH571K,CH583M,CH32V208WBU6,CH341T,CH32V208RBT6,CH9350L,CH32V003J4M6,CH462X,CH32V305RBT6,CH342F,CH342K,CH221K,CH378L,CH9374B,CH340K,CH352L,CH376T,CH376S,CH340N,CH364P,CH582M,CH9102X-1,CH340T,CH9141K,CH340X,CH32V208GBU6,CH341B,CH341A,CH341F,CH571F,CH32V203C8T6,CH341C,CH450H,CH484M,CH351Q,CH,CH32V203G6U6,CH340E,CH582F,CH32F203C8U6,CH340C,CH32V203C8U6,CH340B,CH243K,CH340G,CH390H,CH334R,CH32V303VCT6,CH334Q,CH334P,CH552T,CH390L,CH334U,CH552P,CH334S,CH32V003A4M6,CH456G,CH335F,CH456K,CH32F203C6T6,CH359L,CH444G,CH456H,CH311L,CH541G,CH9328,CH563Q,CH9329,CH345T,CH454S,CH9326,CH343G(编带),CH334F,CH32F208RBT6,CH358L,CH334H,CH455H,CH455G,CH334G,CH32F203VCT6,CH32F208WBU6,CH552E,CH443K,CH552G,CH455K,CH540G,CH344Q,CH182H,CH182F,CH235S,CH236D,CH32V203C6T6,CH563L,CH442E,CH32V307VCT6,CH224K,CH551G,CH343P,CH181H,CH561Q,CH376T(编带装),CH452L,CH440R,CH9340K,CH9340C,CH247D,CH32F207VCT6,CH344L,CH368L,CH423S,CH32V303RCT6,CH382L,CH217X,CH32V103R8T6,CH370T,CH448F,CH32F203K8T6,CH412A,CH32V203F8U6,CH315G,CH412K,CH9143,CH557Q,CH32V203G8R6,CH9140,CH9142,CH9141,CH545L,CH543T,CH446Q,CH446X,CH9126,CH555Q,CH32F103R8T6,CH32F203RCT6,CH217K,CH568L,CH554T,CH457S,CH32V003F4P6,CH445P,CH9101Y,CH554P,CH32V303RBT6,CH9101N,CH9101R,CH9101U,CH9343G,CH579F,CH543D,CH9101H,CH32V307RCT6,CH32V203K8T6,CH334H(编带),CH9343L,CH555L,CH543K,CH9121,CH422G,CH543G,CH9120,CH32V203G8P6,CH410K,CH567L,CH32V307WCU6,CH579M,CH432Q,CH347T,CH9102X,CH444P,CH541T,CH9103,CH432T,CH541P,CH565W,CH421A,CH554E,CH9344L,CH578M,CH348L,CH554G,CH348Q,CH392F,CH227P,CH32V203F6P6,CH542G,CH9102F,CH32V203RBT6,CH483M,CH241K,CH32F203CBT6,CH32V103C8T6,CH374U,CH374T,CH374S,CH483X,CH549L,CH375C,CH549F,CH375B,CH549G,CH581F,CH9434A,CH32F103C8T6,CH559T,CH32V103C8U6,CH32V003F4U6,CH482X,CH397Y,CH548G,CH374F,CH592F,CH132F,CH548L,CH548N,CH132H,CH374G,CH32V208CBU6,CH384L,CH558T,CH32V303CBT6,CH32V305FBP6,CH547G,CH32V203K6T6,CH397A,CH547F,CH482D,CH397G,CH591D,CH397F,CH457VS,CH591F,CH438L,CH317L,CH559L,CH547L,CH438Q,CH569W,CH395L,CH424Q,CH395Q,CH412Z,CH449F,CH546G,CH372C,CH372B,CH558L,CH546L,CH481D

沁恒 - CAD模型库 - 版本7.1 代理服务技术支持现货查询批量订货

沁恒（WCH）通讯接口芯片和全栈MCU选型指南

描述- 南京沁恒微电子股份有限公司专注于连接技术和微处理器内核研究,是一家基于自研专业接口IP、微处理器内核IP构建芯片的集成电路设计企业。公司致力于为客户提供万物互联、上下互通的芯片及解决方案，主要产品包括USB/蓝牙/以太网接口芯片和连接型/互联型/无线型MCU，产品侧重于连接联网和控制。

型号- CH24X,CH233P,CH36X,CH32X035F8U6,CH32X035G8R6,CH32V103C6T6,CH32F205RBT6,CH370,CH372,CH251,CH343G,CH374,CH132,CH253,CH252,CH376,CH343K,CH375,CH254,CH32V006F8P6,CH378,CH377,CH440G,CH32X035,CH25X,CH32V208WBU6,CH583M,CH341T,CH32V003J4M6,CH32F103C6T6,CH233A,CH342F,CH382,CH32V006E8R6,CH384,CH342K,CH233K,CH37X,CH9374B,CH237,CH236,CH58X,CH32F103C8U6,CH340K,CH231K,CH22X,CH238,CH34X,CH340N,CH582M,CH340T,NET-SER-DT TTL,CH341B,CH341A,CH592,CH341F,CH591,CH231,CH486F,CH230,CH233,CH235,CH35X,CH32X035F7P6,CH368,CH484M,CH230K,CH23X,CH231A,CH32V203G6U6,CH340E,CH582F,CH482,CH481,CH340C,CH484,CH340B,CH483,CH365,CH486,CH364,CH340G,CH246,CH367,CH59X,CH4XX,CH366,CH578,CH334R,CH457,CH577,CH32V303VCT6,CH335,CH334Q,CH456,CH334P,CH338,CH579,CH32V,CH56X,CH334U,CH339,CH32X,CH564Q,CH334S,CH32V003A4M6,CH32X033F8P6,CH32F,CH335F,CH347F,CH32M,CH335J,CH32L,CH565M,CH451,CH571,CH450,CH444G,CH238P,CH453,CH573,CH452,CH334,CH455,CH454,CH347,CH226,CH57X,CH225,CH348,CH32X035G8U6,CH237D,CH9342G,CH334F,CH581,CH583,CH564L,CH334H,CH341,CH220,CH462,CH582,CH32F208WBU6,CH340,CH32X035R8T6,CH564F,CH343,CH342,CH221,CH463,CH334L,CH345,CH224,CH443K,CH344,CH223,CH344Q,CH555,CH557,CH315,CH318,CH54X,CH559,CH317,CH438,NET-485-9120,CH235S,CH32V002系列,CH32M007,CH236D,CH442E,CH552,CH551,CH554,CH432,CH567,CH343P,CH446,CH445,CH569,CH55X,CH448,CH568,CH440R,CH31X,CH449,CH440P,CH9340K,CH9340C,CH32F207VCT6,CH561,CH440,CH563,CH442,CH344L,CH565,CH323,CH444,CH564,CH443,CH412,CH64X,CH338X,CH52X,CH32V103R8T6,CH448F,CH32V203F8U6,CH9103M,CH32V203G8R6,CH532,CH531,CH545,CH423,CH547,CH546,CH446Q,CH53X,CH549,CH446X,CH548,CH32F103R8T6,BLE-DONGLE,CH338F,CH9104L,CH338L,CH541,CH543,CH422,CH32V003F4P6,CH9101Y,CH445P,CH9101N,CH9101R,CH9101U,CH9101H,CH32V307RCT6,CH347T,CH643,CH522,CH9102X,CH525,CH444P,CH645,CH524,CH527,CH528,CH565W,CH9344L,CH348L,BLE-SER-A-ANT,CH348Q,CH32V203F6P6,CH521,CH641,CH9102F,CH645W,CH32F203CBT6,CH32V006K8U6,CH32F207,CH32F205,CH32F203,CH32V003F4U6,CH32F208,CH645F,BLE2U-C-ANT,CH643U,CH643W,CH643Q,CH449X,CH32V303CBT6,CH32L103F8U6,CH32V305FBP6,CH569W,CH32F103,CH449F,CH32L103G8R6,CH643L,CH32X035系列,CH32F203C8T6,CH32V208RBT6,CH32V203系列,CH32V305RBT6,CH32V007系列,NET-232-9120,CH32V208GBU6,CH32L103F8P6,CH32V203C8T6,CH32V307,CH32V305,CH32F203C8U6,CH32V203C8U6,CH32V303,CH9160-DG-R0,BLE-TPT-A-ANT,CH32F203C6T6,BLE2U-A-ANT,CH9343,NET-TTL-9120,CH9328,CH9329,CH9326,CH9445,CH32L103C8T6,CH32F208RBT6,CH32F203VCT6,CH32V005F6U6,CH182H,CH182F,CH32V305GBU6,CH9434,CH32V203C6T6,CH32V307VCT6,CH181H,CH32L103系列,CH32V203F8P6,BLE-TPT-B-ANT,CH32V005D6U6,CH912X,CH32V303RCT6,CH32V005E6R6,CH32V003系列,CH32F203K8T6,NET-SER-DT RS232,CH9143,CH93XX,CH9140,CH9142,CH9141,CH9126,CH32V005F6P6,CH32F203RCT6,NET-SER-DT RS485,CH32L103,CH32V006,CH32V007,CH32V005,CH32V002,CH32V003,CH32X035C8T6,CH32V303RBT6,CH32V203K8T6,CH9121,CH9120,CH32V307WCU6,CH32V303系列,CH32F203RBT6,CH32V203RBT6,CH9350,CH483M,CH32V103C8T6,CH32V005系列,CH592X,CH483X,CH32M系列,CH230A,CH32V317,CH581F,CH32F103C8T6,CH32V103C8U6,CH482X,CH32L103K8U6,CH591R,CH32V208,CH182,CH592F,CH32V103系列,CH32V203,CH592D,CH32V208CBU6,CH914X,CH390,CH32V203K6T6,CH392,CH271,CH591D,CH482D,CH591F,CH275,CH395,CH397,CH38X,BLE232-NEP,CH32V006F8U6,CH32V103,CH39X,CH481D

2024/4/11 - 沁恒 - 选型指南代理服务技术支持现货查询批量订货查看更多版本

沁恒（WCH）通讯接口芯片和全栈MCU选型指南

目录- 企业简介接口转换产品 MCU产品选型 USB转串口产品选型低功耗蓝牙系列单片机系列网络系列 USB系列 USB PD协议/Type-C快充系列 PCI/PCIe系列显示驱动及键盘扫描系列单片机外围系列产品方案

型号- CH24X,CH36X,CH32X035F8U6,CH32X035G8R6,CH32V103C6T6,CH32F205RBT6,CH370,CH372,CH343G,CH132,CH374,CH32F203C8T6,CH252,CH376,CH375,CH343K,CH378,CH440G,CH32X035,CH32V208WBU6,CH583M,CH32V208RBT6,CH341T,CH32V003J4M6,CH32F103C6T6,CH32V305RBT6,CH342F,CH382,CH384,CH342K,CH37X,CH9374B,CH237,CH236,CH58X,CH32F103C8U6,CH340K,CH22X,CH34X,NET-232-9120,CH340N,CH582M,CH340T,NET-SER-DT TTL,CH32V208GBU6,CH341B,CH341A,CH32L103F8P6,CH592,CH341F,CH32V203C8T6,CH591,CH231,CH486F,CH351,CH235,CH234,CH35X,CH368,CH32X035F7P6,CH247,CH484M,CH23X,CH32V307,CH32V203G6U6,CH482,CH340E,CH582F,CH32F203C8U6,CH32V305,CH481,CH32V203C8U6,CH340C,CH484,CH32V303,CH340B,CH241,CH483,CH365,CH486,CH364,CH246,CH367,CH340G,CH4XX,CH366,CH457,CH9339,CH578,CH9338,CH32V303VCT6,CH577,CH335,CH456,CH338,CH32V,CH337,CH579,CH56X,CH339,CH32V003A4M6,CH32X033F8P6,CH32F,BLE-TPT-A-ANT,CH32F203C6T6,BLE2U-A-ANT,CH9344,CH9102,CH565M,CH451,CH9101,CH9343,CH571,CH450,CH444G,CH453,CH573,CH452,CH334,CH9340,CH455,NET-TTL-9120,CH454,CH347,CH9328,CH57X,CH563Q,CH226,CH225,CH348,CH9329,CH32X035G8U6,CH9326,CH32L103C8T6,CH9342G,CH32F208RBT6,CH581,CH341,CH462,CH583,CH340,CH32F203VCT6,CH32F208WBU6,CH582,CH343,CH32X035R8T6,CH342,CH221,CH463,CH224,CH345,CH443K,CH344,CH344Q,CH556,CH555,CH558,CH557,CH317,CH438,CH54X,CH559,NET-485-9120,CH319,CH9434,CH32V203C6T6,CH563L,CH442E,CH552,CH32V307VCT6,CH551,CH554,CH224K,CH432,CH343P,CH567,CH446,CH445,CH569,CH55X,CH561Q,CH448,CH568,CH440R,CH31X,CH449,CH440P,CH9340K,CH9340C,CH32F207VCT6,CH440,CH561,CH563,CH32L103系列,CH442,CH344L,CH565,CH444,CH32V203F8P6,CH443,CH412,BLE-TPT-B-ANT,CH32V303RCT6,CH52X,CH32V103R8T6,CH32V003系列,CH448F,CH32F203K8T6,CH32V203F8U6,NET-SER-DT RS232,CH9103M,CH9143,CH93XX,CH9145,CH9140,CH32V203G8R6,CH532,CH9142,CH9141,CH531,CH545,CH424,CH423,CH544,CH547,CH546,CH446Q,CH549,CH53X,CH9126,CH446X,CH548,CH32F103R8T6,BLE-DONGLE,CH32F203RCT6,CH9104L,NET-SER-DT RS485,CH32L103,CH541,CH422,CH543,CH32V003,CH421,CH457S,CH32V003F4P6,CH9101Y,CH445P,CH32V303RBT6,CH32X035C8T6,CH9101N,CH9101R,CH9101U,CH9101H,CH32V307RCT6,CH32V203K8T6,CH9121,CH9120,CH32V307WCU6,CH347T,CH32V303系列,CH643,CH522,CH9102X,CH525,CH444P,CH524,CH527,CH9104,CH9103,CH528,CH565W,CH457C,CH457B,CH9344L,CH348L,BLE-SER-A-ANT,CH348Q,CH32V203F6P6,CH521,CH9350,CH32V203RBT6,CH9102F,CH641,CH483M,CH32F203CBT6,CH32V103C8T6,CH592X,CH483X,CH32L103F7P6,CH91XX,CH581F,CH34X系列,CH32F103C8T6,CH32F207,CH252L,CH32F205,CH32F203,CH32V103C8U6,CH32V003F4U6,CH482X,CH32L103K8U6,CH591R,CH32F208,CH182,CH32V208,CH592F,CH32V103系列,CH32V203,BLE2U-C-ANT,CH32V208CBU6,CH643U,CH643W,CH914X,CH643Q,CH449X,CH32V303CBT6,CH32L103F8U6,CH32V305FBP6,CH390,CH392,CH32V203K6T6,CH58,CH57,CH591D,CH482D,CH591F,CH395,CH274,CH397,CH38X,CH569W,CH315S,BLE232-NEP,CH32F103,CH449F,CH32L103G8R6,CH643L,CH32X035系列,CH32V103,CH39X,CH9150,CH481D

2023/07 - 沁恒 - 选型指南代理服务技术支持现货查询批量订货

沁恒（WCH）通讯接口芯片和全栈MCU选型指南

目录- 企业简介接口转换产品 MCU产品选型 USB转串口产品选型低功耗蓝牙系列单片机系列网络系列 USB系列 USB PD协议系列/ Type-C快充系列 PCI/PCIE 系列显示驱动及键盘扫描系列单片机外围系列通讯接口芯片和全栈MCU芯片产品方案

型号- CH24X,CH36X,CH32V103C6T6,CH32F205RBT6,CH370,CH372,CH343G,CH374,CH132,CH32F203C8T6,CH252,CH376,CH343K,CH375,CH378,CH440G,CH583M,CH32V208WBU6,CH32V208RBT6,CH341T,CH32V003J4M6,CH32V203系列,CH32F103C6T6,CH32V305RBT6,CH382,CH342F,CH384,CH342K,CH221K,CH37X,CH9374B,CH237,CH236,CH58X,CH340K,CH32F103C8U6,CH22X,CH34X,NET-232-9120,CH582M,CH340N,CH340T,NET-SER-DT TTL,CH32V208GBU6,CH341B,CH341A,CH341F,CH32V203C8T6,CH231,CH486F,CH351,CH235,CH234,CH35X,CH247,CH368,CH484M,CH23X,CH32V307,CH32V203G6U6,CH582F,CH340E,CH482,CH32V305,CH481,CH32F203C8U6,CH340C,CH484,CH32V203C8U6,CH32V303,CH340B,CH241,CH483,CH365,CH486,CH364,CH340G,CH246,CH367,CH4XX,CH366,CH578,CH457,CH9339,CH577,CH32V303VCT6,CH335,CH456,CH9338,CH579,CH337,CH32V,CH56X,CH339,CH32V003A4M6,CH32F,BLE-TPT-A-ANT,CH32F203C6T6,BLE2U-A-ANT,CH565M,CH451,CH9102,CH9344,CH571,CH450,CH444G,CH9101,CH9343,CH453,CH573,CH452,CH334,CH455,CH9340,NET-TTL-9120,CH454,CH563Q,CH347,CH9328,CH226,CH57X,CH225,CH348,CH9329,CH9326,CH9342G,CH32F208RBT6,CH581,CH583,CH341,CH462,CH582,CH32F203VCT6,CH32F208WBU6,CH340,CH343,CH342,CH221,CH463,CH345,CH224,CH443K,CH344,CH556,CH344Q,CH555,CH558,CH557,CH559,CH317,CH438,CH54X,NET-485-9120,CH9434,CH319,CH224D,CH563L,CH442E,CH32V203C6T6,CH552,CH32V307VCT6,CH551,CH554,CH224K,CH432,CH567,CH343P,CH446,CH445,CH569,CH561Q,CH448,CH55X,CH568,CH440R,CH31X,CH449,CH440P,CH9340K,CH9340C,CH32F207VCT6,CH561,CH440,CH563,CH442,CH344L,CH565,CH444,CH443,CH32V203F8P6,CH412,BLE-TPT-B-ANT,CH32V303RCT6,CH52X,CH32V103R8T6,CH32V003系列,CH448F,CH32F203K8T6,CH32V203F8U6,NET-SER-DT RS232,CH9103M,CH9143,CH93XX,CH9145,CH9140,CH32V203G8R6,CH9142,CH532,CH9141,CH531,CH545,CH424,CH544,CH423,CH547,CH546,CH446Q,CH549,CH9126,CH446X,CH53X,CH548,CH32F103R8T6,BLE-DONGLE,CH32F203RCT6,NET-SER-DT RS485,CH9104L,CH541,CH540,CH543,CH422,CH32V003,CH542,CH421,CH32V003F4P6,CH9101Y,CH445P,CH32V303RBT6,CH9101N,CH9101R,CH9101U,CH9101H,CH32V307RCT6,CH32V203K8T6,CH9121,CH9120,CH32V307WCU6,CH32V303系列,CH347T,CH522,CH9102X,CH444P,CH525,CH524,CH9104,CH527,CH9103,CH528,CH565W,CH9344L,BLE-SER-A-ANT,CH348L,CH348Q,CH32V203F6P6,CH521,CH9350,CH32V203RBT6,CH9102F,CH483M,CH32F203CBT6,CH32V103C8T6,CH483X,CH91XX,CH581F,CH32F103C8T6,CH32F207,CH32F205,CH32F203,CH32V103C8U6,CH32V003F4U6,CH482X,CH32F208,CH181,CH32V208,CH182,CH32V103系列,CH32V203,BLE2U-C-ANT,CH32V208CBU6,CH914X,CH449X,CH32V303CBT6,CH32V305FBP6,CH390,CH392,CH32V203K6T6,CH482D,CH395,CH397,CH38X,CH569W,CH315S,BLE232-NEP,CH32F103,CH449F,CH32V103,CH39X,CH9150,CH481D

2022/12/06 - 沁恒 - 选型指南代理服务技术支持现货查询批量订货

沁恒（WCH）通讯接口芯片和全栈MCU选型指南

目录- 企业简介接口转换产品 MCU产品选型 USB转串口产品选型低功耗蓝牙系列单片机系列网络系列 USB系列 USB PD协议系列 PCI/PCIE 系列显示驱动及键盘扫描系列单片机外围系列产品方案

型号- CH32V103C6T6,CH32F205RBT6,CH343G,CH32F203C8T6,CH343K,CH573F,CH378,CH440G,CH571K,CH32V208WBU6,CH583M,CH32V208RBT6,CH341T,CH32F103C6T6,CH32V305RBT6,CH342F,CH384,CH342K,CH32F103C8U6,CH340K,CH582M,CH340N,CH340T,CH32V208GBU6,CH341B,CH341A,CH571F,CH341F,CH32V203C8T6,CH486F,CH571D,CH368,CH484M,CH32V307,CH582F,CH340E,CH482,CH32F203C8U6,CH32V305,CH481,CH32V203C8U6,CH340C,CH484,CH32V303,CH483,CH486,CH340G,CH246,CH578,CH457,CH32V303VCT6,CH577,CH335,CH456,CH552T,CH579,CH552P,CH577F,CH32F203C6T6,CH9344,CH451,CH450,CH444G,CH453,CH452,CH334,CH455,CH454,CH9328,CH348,CH9329,CH224P,CH9326,CH34B,CH9342G,CH32F208RBT6,CH581,CH583,CH341,CH462,CH32F203VCT6,CH32F208WBU6,CH582,CH340,CH552E,CH343,CH342,CH463,CH552G,CH345,CH224,CH443K,CH344,CH556,CH555,CH558,CH557,CH559,CH317,CH438,CH224D,CH32V203C6T6,CH442E,CH552,CH551,CH554,CH224K,CH551G,CH343P,CH567,CH446,CH445,CH569,CH448,CH568,CH440R,CH449,CH440P,CH573X,CH9340K,CH9340C,CH32F207VCT6,CH440,CH442,CH344L,CH565,CH444,CH443,CH32V303RCT6,CH32V103R8T6,CH448F,CH9103M,CH9143,CH557Q,CH9140,CH532,CH9142,CH545L,CH531,CH9141,CH545,CH544,CH423,CH547,CH546,CH549,CH548,CH32F103R8T6,CH32F203RCT6,CH541,CH540,CH543,CH422,CH542,CH554T,CH445P,CH554P,CH32V303RBT6,CH9101U,CH579F,CH9101H,CH32V307RCT6,CH32V203K8T6,CH555L,CH9121,CH9120,CH579M,CH522,CH9102X,CH525,CH444P,CH524,CH527,CH528,CH578F,CH554E,CH9344L,CH578M,CH348L,CH554G,CH348Q,CH521,CH9102F,CH9350,CH483M,CH32F203CBT6,CH32V103C8T6,CH483X,CH549L,CH549F,CH549G,CH581F,CH32F103C8T6,CH32F207,CH32F205,CH559T,CH32F203,CH32V103C8U8,CH482X,CH32F208,CH548G,CH32V208,CH548L,CH32V203,CH548N,CH32V208CBU6,CH558T,CH32V303CBT6,CH547G,CH392,CH547F,CH482D,CH395,CH559L,CH547L,CH397,CH32F103,CH546G,CH32V103,CH558L,CH546L,CH481D

2022/01 - 沁恒 - 选型指南代理服务技术支持现货查询批量订货

USB 转串口芯片 CH340 手册

型号- CH340K,CH340N,CH340E,CH340T,CH340C,CH340,CH340B,CH340R,CH340X,CH340G

2024/01/03 - 沁恒 - 数据手册 - 版本：3C 代理服务技术支持现货查询批量订货

CH340 USB转串口芯片数据手册

型号- CH340K,CH340N,CH340E,CH340C,CH340,CH340B,CH340R

2021/12/17 - 沁恒 - 数据手册代理服务技术支持现货查询批量订货查看更多版本

沁恒USB转单串口芯片选型表

沁恒USB转单串口芯片选型表提供USB高速/全速转串口系列芯片，可实现USB转1/2/4/8路串口，支持串口I/O独立供电，支持VCP/HID/CDC/AOA转串口，VCP串口支持硬件流控和高波特率大数据连续传输，部分型号支持VID/PID/String等内容配置，支持Windows/Linux/Android/macOS等操作系统。

RTS/CTS/DTR/DSR/DCD/RI

选型表 - 沁恒立即选型

【视频】沁恒工业级-40℃~+85℃的高速率USB转单/多串口芯片，满足兼容CH910X系列

型号- CH340K,CH340N,CH340T,CH9101U,CH9101H,CH341B,CH341A,CH9103M,CH341F,CH343G,CH9143,CH343K,CH334,CH343P,CH9102X,CH9326,CH9340K,CH341T,CH9340C,CH9342G,CH9344L,CH340E,CH342F,CH348L,CH340C,CH340B,CH342K,CH348Q,CH344L,CH340G,CH9102F

沁恒 - 商品及供应商介绍代理服务技术支持现货查询批量订货

CH340 USB转串口芯片

型号- CH340K,CH340N,CH340E,CH340C,CH340B,CH340R,CH340,CH340X

沁恒 - 数据手册 - 版本：3B 代理服务技术支持现货查询批量订货

沁恒USB芯片选型表

沁恒提供USB转单串口芯片、USB转多串口芯片选择，包括第三代CH343、CH9102串口芯片，满足工业级需求，最高速率可达12Mbps，多款封装和IO电压选择，支持Windows/Linux/Android/macOS系统，其中CH9101可以和FT232RQ/FT232RL进行P2P。

RTS/CTS/DTR/DSR/DCD/RI

选型表 - 沁恒立即选型

沁恒（WCH）USB转串口芯片选型表&Pin To Pin替换对照表

目录- USB转单/多串口芯片 PinToPin替换型号总表芯片参数表

型号- PL2303系列,FT232R,PL2303GL,CH9103M,CH343G,CH9143,FT230XQ,CH9102,CH9101,CP210X系列,CY7C65213,CH343K,FT230XS,CH347,CY7C65213系列,FT232RQ,CP2105,CP2104,CH9326,CP2109,CH341T,CP2102N-GQFN24,CP2102N-GQFN28,CH9104L,CH9342G,PL2303GC,CH9101系列,XR21B1422,CH342F,CH342K,CP2102,CH342,CP2101,CH344Q,CH340K,CH9101Y,PL2303HXD,CP210X,CH340N,CH9101N,CH340T,PL2303,CY7C65213(A),CH9101R,XR21V1414,CH9101U,CH9101H,CH341B,CH341A,CH341F,FT230X,FT232RL,CH343P,CH347T,CH9102X,CH9103,CH9340K,CH9340C,CH9344L,CH9102系列,CH340E,CH348L,CH340C,CH340B,CH348Q,CH344L,CH340G,CH9102F

2022/8/18 - 沁恒 - 选型指南代理服务技术支持现货查询批量订货

【选型】沁恒公司提供USB高速/全速转串口系列芯片，可实现USB转1/2/4/8路串口，支持串口I/O独立供电

沁恒专注于连接与控制领域，在USB转接领域深耕多年。提供USB高速/全速转串口系列芯片，可实现USB转1/2/4/8路串口，支持串口I/O独立供电，支持VCP/HID/CDC/AOA转串口，VCP串口支持硬件流控和高波特率大数据连续传输，部分型号支持VID/PID/String等内容配置

2022-07-13 - 器件选型代理服务技术支持现货查询批量订货

【产品】沁恒推出内置固件的USB转串口芯片CH340，支持波特率2400-115200bps

沁恒USB转串口芯片CH340是一个USB总线的转接芯片，实现USB转串口或者USB转打印口。产品特点：全速USB设备接口；仿真标准串口，用于升级原串口外围设备，或者通过USB增加额外串口。

2022-05-14 - 产品代理服务技术支持现货查询批量订货

沁恒（WCH）USB转串口芯片选型表

目录- USB转串口芯片

型号- CH344Q,CH340K,CH340N,CH340T,CH9101U,CH9101H,CH341B,CH341A,CH9103M,CH341F,CH343G,CH9143,CH343K,CH343P,CH347,CH9102X,CH9326,CH9340K,CH341T,CH9340C,CH9342G,CH9344L,CH340E,CH342F,CH348L,CH340C,CH340B,CH342K,CH348Q,CH344L,CH340G,CH9102F

沁恒 - 选型指南代理服务技术支持现货查询批量订货