【产品】串口I/O独立供电的USB总线转接芯片CH343,支持CTS和RTS硬件自动流控
沁恒推出的CH343是一个USB总线转接芯片,实现USB转高速异步串口,同时支持115200bps及以下通讯波特率的自动识别和动态自适应,提供了常用的MODEM联络信号,用于为计算机扩展异步串口,或者将普通的串口设备或者MCU直接升级到USB总线。
特点
全速USB设备接口,兼容USB V2.0。
内置固件,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。
支持免安装的操作系统内置CDC类驱动程序或者多功能高速率的VCP厂商驱动程序。
硬件全双工串口,内置独立的收发缓冲区,支持通讯波特率50bps~6Mbps。
可选自动识别和动态自适应在115200bps及以下的常用通讯波特率。
串口支持5、6、7或者8个数据位,支持奇校验、偶校验、空白、标志以及无校验。
支持常用的MODEM联络信号RTS、DTR、DCD、RI、DSR、CTS。
支持CTS和RTS硬件自动流控。
支持半双工,提供正在发送状态TNOW支持RS485切换。
通过外加电平转换器件,支持RS232接口。
USB端支持5V电源电压和3.3V电源电压。
串口I/O独立供电,支持5V、3.3V、2.5V、1.8V电源电压。
内置上电复位,内置时钟,无需外部晶振。
CH343P内置EEPROM,可配置芯片VID、PID、最大电流值、厂商和产品信息字符串等参数。
芯片内置Unique ID(USB Serial Number)。
提供SOP16和ESSOP10及QFN16无铅封装,兼容RoHS。
封装
注:CH343K/CH343P的底板是0#引脚GND,是可选但建议的连接;其它GND是必要连接。
CH343的USB收发器按USB2.0全内置设计,UD+和UD-引脚不能串接电阻,否则影响信号质量。
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本文由扶摇转载自沁恒,原文标题为:USB转高速串口芯片 CH343,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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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(WCH)USB转串口芯片选型表&Pin To Pin对照表
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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。
产品型号
|
品类
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串口数
|
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)
|
硬件流控
|
自动控制RS485
|
USB配置
|
IO电压(V)
|
MUC电压(V)
|
省电双供电&IO防倒灌
|
MODEM信号(兼GPIO和其他接口)
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内置时钟
|
温度范围(℃)
|
封装
|
内核
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CH343P
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USB转单串口芯片
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1
|
全速
|
VCP/CDC
|
6Mbps
|
6Mbps
|
√
|
√
|
内置
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5V/3.3V/2.5V/1.8V
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5V/3.3V/2.5V/1.8V
|
√
|
RTS/CTS/DTR/DSR/DCD/RI
|
√
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-40~+85℃
|
QFN16
|
第3代
|
选型表 - 沁恒 立即选型
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