【应用】内置固件的国产USB转串口桥接芯片CH340G用于集中式DTU,支持波特率2400-115200bps
集中式DTU采用了高性能MCU处理器、高速工业网络通信技术、多CPU集成技术主要应用于配电网中的环网柜、开闭所、箱式变电站等,结合配电主站可以快速可靠的实现配电网故障定位、隔离以及非故障区段的恢复供电,是一种集遥测、遥信、遥控、保护和通信等功能于一体的新一代配电自动化远方终端装置。
本文主要介绍国产内置固件的USB转串口桥接芯片CH340G应用于集中式DTU,支持波特率2400-115200bps,应用框图如下:
产品优势特色:
1,全速USB设备接口,兼容USB V2.0。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。
计算机端Windows操作系统下的串口应用程序完全兼容,无需修改。
2,硬件全双工串口,内置收发缓冲区,支持通讯波特率50bps~2Mbps。支持常用的MODEM联络信号RTS、DTR、DCD、RI、DSR、CTS。通过外加电平转换器件,提供RS232、RS485、RS422等接口。支持波特率2400bps到115200bps。内置固件,软件兼容CH341,可以直接使用CH341的VCP驱动程序。
3,支持5V电源电压和3.3V电源电压。
4,提供SOP-16、SOP-8和SSOP-20以及ESSOP-10、MSOP-10无铅封装,兼容RoHS。
产品封装如下:
综上所述:
随着国产化需求和高性价比的需求,工程师越来越有意使用国产产品做设计和应用,尤其在疫情不明朗的当下,国产内置固件的USB转串口桥接芯片CH340G应用于集中式DTU电路设计应用的高性价比解决方案。
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产品型号
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品类
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串口数
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USB
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驱动类型
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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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MUC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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内置时钟
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温度范围(℃)
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封装
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内核
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CH343P
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USB转单串口芯片
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1
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全速
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VCP/CDC
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6Mbps
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6Mbps
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√
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√
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内置
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5V/3.3V/2.5V/1.8V
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5V/3.3V/2.5V/1.8V
|
√
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RTS/CTS/DTR/DSR/DCD/RI
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√
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-40~+85℃
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QFN16
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第3代
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选型表 - 沁恒 立即选型
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
【经验】如何用通用接口芯片CH372或CH375代替CH371? 修改硬件连接方式以及软件操作方式即可
本文是关于如何将沁恒通用接口芯片CH372(或者CH375)用于原CH371演示板的说明。有些用户已经购买CH371+CH451的演示板(评估板),如果打算在该演示板上试用CH372或者CH375,那么可以外加一块CH375到CH371的转换板来实现。
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