CH9344L是一款USB转4串口控制芯片，提供4组全双工的异步串口UART0/1/2/3，用于为计算机扩展异步串口，或者将普通的串口设备升级到USB总线。
USB转4串口芯片CH9344
工作电压：3.3V。
高速USB 2.0接口，外围元器件只需要晶体和电容。
兼容16C550异步串口并且有所增强。
支持5、6、7或者8个数据位以及1或者2个停止位。
支持奇、偶、无校验、空白0、标志1等校验方式。
支持CTS和RTS硬件自动流控。
支持半双工，提供正在发送状态支持RS485切换，默认开启此功能。
提供12个GPIO，可任意输入、输出。
可编程通讯波特率，支持115200bps以及最高达12Mbps的通讯波特率。
串口0/1/2及部分I/O独立供电，支持3.3V和2.5V甚至1.8V电源电压。串口3支持3.3V供电。
串口驱动支持：Windows XP/Vista/Win7/Win8/Win10/Win server/Linux等。
提供LQFP-48无铅封装，兼容RoHS。
CH9344 LQFP-49,全新原装当天发货或门市自取，量大价优，电子元器件BOM表一站式配单配套,稳定供应,因产品过多原因我们未对一.一产品进行参数描述，如需了解更多产品信息和价格欢迎咨询和购买请联系我们的工作人员.
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