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CH9114F是南京沁恒微电子(WCH)推出的USB 2.0转4通道UART桥接芯片,专为嵌入式系统、工业控制、物联网等场景中的多串口扩展需求设计,兼具紧凑封装、低功耗与高兼容性特点,是替代多颗单通道转串口芯片的高性价比方案。
CH9114F的核心作用是实现USB主机与4路独立UART接口的双向数据转换:一方面将USB总线上的数字信号解析为UART异步串行数据,另一方面将UART外设的串口数据封装为USB数据包上传至主机。4路UART可独立配置波特率、数据位、停止位、校验位等参数,互不干扰,能同时连接多个串口设备(如传感器、Modem、PLC外设等)。
CH9114F的核心参数匹配主流应用需求,具体如下:
芯片采用QFN-32-EP封装,尺寸4×4mm,带增强散热焊盘(EP):
双电源设计解决电平兼容问题:
CH9114F的多通道、低功耗特性覆盖多个领域:
CH9114F凭借多通道集成、低功耗、紧凑封装、宽电压兼容等核心优势,成为USB转串口扩展的优选方案,广泛应用于工业控制、嵌入式系统、物联网等领域,帮助工程师简化设计、降低成本,同时提升系统可靠性。
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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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