CH344Q是一款USB總線的轉(zhuǎn)接芯片，實現(xiàn)USB轉(zhuǎn)四個異步串口UART0/1/2/3功能，用于為計算機擴展異步串口，或者將普通的串口設(shè)備或者MCU直接升級到USB總線。

USB轉(zhuǎn)4串口芯片CH344

CH344Q為480Mbps高速USB設(shè)備接口，CH344L為12Mbps全速USB設(shè)備接口。

內(nèi)置固件，仿真標準串口，用于升級原串口外圍設(shè)備，或者通過USB增加額外串口。

計算機端Windows操作系統(tǒng)下的串口應用程序完全兼容，無需修改。

支持免安裝的操作系統(tǒng)內(nèi)置CDC類驅(qū)動程序或者多功能高速率的VCP廠商驅(qū)動程序。

硬件全雙工串口，內(nèi)置獨立的收發(fā)緩沖區(qū)。

CH344Q支持通訊波特率1200bps～6Mbps，CH344L支持1200bps～230400bps。

串口支持8個數(shù)據(jù)位，支持奇校驗、偶校驗以及無校驗。

每個串口內(nèi)置1024字節(jié)的接收FIFO，512字節(jié)的發(fā)送FIFO。

支持常用的MODEM聯(lián)絡(luò)信號CTS和RTS。

支持CTS和RTS硬件自動流控。

支持半雙工，提供串口正在發(fā)送狀態(tài)指示TNOW，可用于控制RS485收發(fā)切換。

支持最多16路GPIO輸入輸出功能。

通過外加電平轉(zhuǎn)換器件，支持RS232、RS485、RS422等接口。

內(nèi)置EEPROM，可配置芯片VID、PID、最大電流值、廠商和產(chǎn)品信息字符串等參數(shù)。

單一3.3V供電。

提供LQFP48無鉛封裝，兼容RoHS。

CH344Q

CH344L,全新原裝當天發(fā)貨或門市自取，量大價優(yōu)，電子元器件BOM表一站式配單配套,穩(wěn)定供應,因產(chǎn)品過多原因我們未對一.一產(chǎn)品進行參數(shù)描述，如需了解更多產(chǎn)品信息和價格歡迎咨詢和購買請聯(lián)系我們的工作人員.

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