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  • USB转UART相关芯片

    CP210X 系类

    官网地址

    CP2102参考外围电路

    CP2102 Pin Definitions
    Name Pin # Type Description  说明
    VDD 6

    Power In

    Power Out

    3.0–3.6 V Power Supply Voltage Input.

    3.3 V Voltage Regulator Output. 

    3.0–3.6 V电源电压输入。

    3.3V电压调节器输出。

    GND 3   Ground 接地
    RST 9 D I/O Device Reset. Open-drain output of internal POR or VDD monitor. An external source can initiate a system reset by driving this pin low for at least 15 µs. 设备重置。内部POR或VDD监视器的开漏输出。外部电源可通过将该引脚低驱动至少15µs来启动系统复位。
    REGIN 7 Power In 5 V Regulator Input. This pin is the input to the on-chip voltage regulator. 5 V调节器输入。该引脚是片上电压调节器的输入。
    VBUS 8 D In VBUS Sense Input. This pin should be connected to the VBUS signal of a USB network. A 5 V signal on this pin indicates a USB network connection. VBUS感应输入。此引脚应连接到USB网络的VBUS信号。此引脚上的5 V信号表示USB网络连接。
    D+ 4 D I/O USB D+ USB D接口+
    D- 5 D I/O USB D– USB D接口-
    TXD 26 D Out Asynchronous data output (UART Transmit) 异步数据输出(UART传输)
    RTX 25 D In Asynchronous data input (UART Receive) 异步数据输入(UART接收)
    CTS 23 D In Clear To Send control input (active low) 清除发送控制输入(低电平有效)
    RTS 24 D Out Ready to Send control output (active low) 准备发送控制输出(低有效)
    DSR 27 D In Data Set Ready control input (active low) 数据集就绪控制输入(低电平有效)
    DTR 28 D Out Data Terminal Ready control output (active low) 数据终端就绪控制输出(低电平有效)
    DCD 1 D In Data Carrier Detect control input (active low) 数据载波检测控制输入(低电平有效)
    RI 2 D In Ring Indicator control input (active low) 环形指示灯控制输入(低电平有效)
    SUSPEND 12 D Out This pin is driven high when the CP2102 enters the USB suspend state. 当CP2102进入USB挂起状态时,该引脚被驱动为高电平。
    SUSPEND

    11 

    D Out This pin is driven low when the CP2102 enters the USB suspend state 当CP2102进入USB挂起状态时,该引脚被驱动为低电平
    NC 10,13-22   These pins should be left unconnected or tied to VDD. 这些引脚应保持不连接或与VDD相连。
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  • 原文地址:https://www.cnblogs.com/lnsane/p/13581703.html
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