【应用】4端口高速USB HUB控制器芯片CH334和USB转8串口芯片CH348,6Mbps通讯波特率下持续稳定传输
沁恒推出采用4端口高速USB HUB控制器芯片CH334和高速USB转8串口芯片CH348,可实现USB转32路高速串口。相较于传统方式,通过多级HUB级联多个CH340实现的USB转多串口方案,可节省多个HUB芯片与产品体积,且CH348的每个串口在通讯速度、通讯电压范围等各项指标上较CH340均有增强。CH348芯片的8个串口支持I/O独立供电和硬件流控,支持多路串口同时在最高6Mbps通讯波特率下持续稳定传输,支Windows/Linux/Android/macOS等操作系统,可应用于工控主机、串口服务器、安卓嵌入式主板串口扩展、调试下载、高速串口数据记录等。
应用框图
CH334:4端口USB HUB控制器芯片,HUB——集线器,用于host和device之间USB接口扩展的一个USB设备。
CH334可扩展4个USB设备端口,上行端口支持USB2.0高速和全速,下行端口支持USB2.0高速480Mbps、全速12
Mbps和低速1.5Mbps。除CH348Q外,CH334还可连接其他USB设备,可实现多路串口+“U盘”+“分析仪”等多设备组合的方案。
CH348:USB转8串口芯片,每个UART均内置独立的收发FIFO,发送FIFO为1K字节,接收FIFO为2K字节。串口波特率支持6Mbps,串口IO电压支持3.3V/2.5/1.8V等。提供最多48路GPIO,以及RS485收发控制功能。
接线说明
将CH334上行端口与PC连接;
4个CH348Q芯片分别与CH334的四个下行端口相连。
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本文由咪猫转载自沁恒,原文标题为:USB转32串口应用方案,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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CH334U IC RoHS(SGS)检测报告(CANEC2304439901)
描述- 本报告为南京勤恒微电子有限公司提供的CH334U型号IC元器件的测试报告。报告编号为CANEC2304439901,测试日期为2023年3月27日至31日。测试内容包括欧盟RoHS指令(EU)2015/863规定的有害物质限量,如铅、汞、镉、六价铬、多溴联苯(PBBs)、多溴联苯醚(PBDEs)、邻苯二甲酸酯类等。所有测试项目均符合RoHS指令要求,测试结果为“通过”。
型号- CH32V103C6T6,CH32F103VCT6,CH32F205RBT6,CH32V103VBT6,CH370,CH251,CH372,CH132,CH374,CH252,CH376,CH375,CH378,CH32V107RCT6,CH32V208WBU6,CH32V403CBT6,CH32V003J4M6,CH32F103C6T6,CH382,CH384,CH32V305WBU6,CH237,CH358,CH32F107RCT6,CH236,CH357,CH32F103C8U6,CH238,CH359,CH32L103J4M6,CH32V103VCT6,CH590,CH350,CH471,CH592,CH591,CH231,CH352,CH351,CH472,CH593,CH233,CH354,CH232,CH353,CH235,CH356,CH234,CH355,CH248,CH247,CH368,CH249,CH32V107RBT6,CH32V203G6U6,CH482,CH360,CH481,CH242,CH484,CH241,CH483,CH244,CH365,CH486,CH122,CH243,CH364,CH246,CH367,CH245,CH366,CH457,CH578,CH3232,CH335,CH456,CH577,CH32V303VCT6,CH217,CH338,CH459,CH337,CH458,CH579,CH334U,CH339,CH32V003A4M6,CH32V405RBT6,CH570,CH330,CH451,CH572,CH450,CH571,CH332,CH453,CH574,CH331,CH452,CH573,CH213,CH334,CH455,CH576,CH454,CH575,CH226,CH347,CH225,CH228,CH227,CH348,CH32V403G6U6,CH32V407VCT6,CH32L103G6U6,CH581,CH341,CH462,CH583,CH340,CH582,CH32F208WBU6,CH343,CH464,CH221,CH342,CH463,CH224,CH345,CH344,CH465,CH314,CH556,CH313,CH555,CH316,CH558,CH315,CH557,CH318,CH317,CH438,CH559,CH319,CH32L103F4U6,CH32F103VBT6,CH552,CH32L103FBP6,CH551,CH312,CH554,CH311,CH432,CH553,CH446,CH567,CH445,CH448,CH569,CH447,CH568,CH449,CH32F207VCT6,CH440,CH561,CH321,CH442,CH563,CH441,CH562,CH323,CH444,CH565,CH322,CH443,CH564,CH413,CH534,CH412,CH533,CH536,CH538,CH537,CH539,CH32V103R8T6,CH9936,CH9937,CH32V203F8U6,CH32V403C6T6,CH530,CH32V203G8R6,CH411,CH532,CH410,CH531,CH424,CH545,CH423,CH544,CH547,CH546,CH549,CH548,CH32F103R8T6,CH32V403F8P6,CH32V407RCT6,CH541,CH32L103CBT6,CH540,CH422,CH543,CH421,CH542,CH633,CH632,CH635,CH32V003F4P6,CH634,CH516,CH637,CH636,CH639,CH638,CH32L103F4P6,CH32V307RCT6,CH32L103CBU6,CH631,CH32V203G8P6,CH523,CH522,CH643,CH525,CH524,CH527,CH526,CH529,CH528,CH32V203F6P6,CH521,CH642,CH520,CH641,CH32F107RBT6,CH32F203CBT6,CH32V105RBT6,CH32V103R6T6,CH32V403G8P6,CH622,CH621,CH32V003F4U6,CH32F103R6T6,CH32F105RCT6,CH32V403F6P6,CH32L103G8P6,CH32V105RCT6,CH32V403F8U6,CH32V403G8R6,CH32V303CBT6,DM7407,CH32L103F8U6,CH32V305FBP6,CH32L103F6P6,CH32V405FBP6,CH32L103G8R6,CH32V403K6T6,CH9415,CH9413,CH9414,CH9412,CH32F107VBT6,CH8572,CH8571,CH32F203C8T6,CH8570,CH9884,CH32V208RBT6,CH32L103C6T6,CH32V305RBT6,CH9516,CH9514,CH9515,CH9512,CH9513,CH9511,CH32V208GBU6,CH32L103F8P6,CH9882,CH32V203C8T6,CH9626,CH9627,CH9624,CH9625,CH9622,CH9623,CH32F105RBT6,CH9628,CH9629,CH32F203C8U6,CH32V203C8U6,CH9578,CH9576,CH9577,CH32V405WBU6,CH32V403C8T6,CH32F103RCT6,CH32V103RBT6,CH9100,CH9342,CH32F203C6T6,CH9341,CH9102,CH9344,CH9101,CH9343,CH9463,CH9340,CH9328,CH9327,CH9569,CH9329,CH9326,CH9565,CH9325,CH9445,CH9566,CH32V107VCT6,CH32L103C8T6,CH32V403C8U6,CH32F208RBT6,CH9331,CH9574,CH9330,CH9575,CH9573,CH32F203VCT6,CH9317,CH9318,CH9438,CH9435,CH9436,CH9315,CH9433,CH9434,CH32F107VCT6,CH32L103C8U6,CH32V103RCT6,CH9320,CH32V203C6T6,CH32V307VCT6,CH9426,CH32V107VBT6,CH32V403VCT6,CH9431,CH9552,CH9432,CH32V203F8P6,CH32V303RCT6,CH32L103K6T6,CH32F203K8T6,CH9144,CH32L103A4M6,CH9143,CH9145,CH9140,CH9142,CH9141,CH9126,CH32V407WCU6,CH32F105VCT6,CH32F203RCT6,CH9375,CH9374,CH9371,CH9370,CH9373,CH9130,CH9372,CH32V303RBT6,CH32F103RBT6,CH32V203K8T6,CH9122,CH9121,CH9120,CH32V307WCU6,CH9104,CH9346,CH9103,CH9345,CH32V403RCT6,CH32F203RBT6,CH9232,CH9110,CH9234,CH9230,CH9350,CH32V203RBT6,CH32V103C8T6,CH32V403K8T6,CH32L103K8T6,CH32F103C8T6,CH32V403RBT6,CH32V103C8U6,CH32V105VCT6,CH181,CH183,CH182,CH32V208CBU6,CH390,CH392,CH32V203K6T6,CH394,CH9165,CH396,CH395,CH32L103GBU6,CH398,CH397,CH9161,CH32F105VBT6,CH32V105VBT6,CH9397,CH9150,CH9153,CH9152
沁恒USB转多串口芯片选型表
沁恒USB转多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。
产品型号
|
品类
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串口数
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USB
|
驱动类型
|
峰值最高波特率(Mbps)
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流控连续波特率(Mbps)
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硬件流控
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自动控制RS485
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USB配置
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IO电压(V)
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MCU电压(V)
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省电双供电&IO防倒灌
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MODEM信号(兼GPIO和其他接口)
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温度范围(℃)
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封装
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内核
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CH347F
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USB转多串口芯片
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1/2
|
480Mbps 高速
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VCP/CDC/HID
|
9Mbps
|
9Mbps
|
√
|
√
|
内置
|
3.3V/2.5V/1.8V
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3.3V/2.5V/1.8V
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√
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RTS/CTS/DTR
JTAG/SWD/SPI/I2C/GPIO*8
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-40~+85℃
|
QFN28
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高速USB+多接口
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选型表 - 沁恒 立即选型
CH348 USB转8串口芯片数据手册
描述- CH348是一款高速USB总线转接芯片,具备8个异步串口UART功能,适用于计算机扩展异步串口或将普通串口设备升级至USB总线。其主要特点包括480Mbps的高速USB接口、内置固件支持标准串口仿真、兼容Windows操作系统下的串口应用程序、全双工串口设计、多种波特率和校验位支持、丰富的GPIO功能和多电压供电选项。
型号- CH348,CH348L,CH348Q
电子商城
服务
提供蓝牙BLE芯片协议、蓝牙模块、蓝牙成品测试认证服务;测试内容分Host主机层,Controller控制器层,Profile应用层测试。支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳 提交需求>
可定制板装式压力传感器支持产品量程从5inch水柱到100 psi气压;数字输出压力传感器压力范围0.5~60inH2O,温度补偿范围-20~85ºС;模拟和数字低压传感器可以直接与微控制器通信,具备多种小型SIP和DIP封装可选择。
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