| USB to Quad UART Module Features | |||
|---|---|---|---|
| Product Name | USB to quad UART module | ||
| Model | FIT-USB-TO-4-UARTS | ||
| Working Temp | -40℃~+85℃ | ||
| SPec. | can support four 5-wire serial port | ||
| Chipset | XR21V1414 | ||
| Main function | XR21V1414（V1414）是一款增强型的接口转换芯片，由USB接口转换成4通道的UART接口。USB接口完全兼容全速USB 2.0规范并支持12Mbps的USB数据传输速率。USB接口还支持USB挂起、恢复和远程唤醒操作。XR21V1414工作在48MHz的内部时钟，因此不需要外部晶振。内置独立波特率发生器，使用48MHz的内部时钟，能准确地产生任何波特率。 XR21V1414具有128字节发送FIFO和384字节接收FIFO，有助于优化各种应用中的整体数据吞吐量，减少CPU的资源。自动收发方向控制功能， 从硬件和软件方面上简化了的半双工RS-485应用。在多点（9位）模式下自动半双工收发器控制功能简化了典型的多点RS-485接口的应用。 XR21V1414工作电压为2.97V~3.63V，5V的耐压输入，提供TQFP-48封装。 | ||
| Compatible with USB 2.0 |
can support 12Mbps full-speed USB data transmission rate, can support USB suspend, recovery and remote waken up |
||
| Strongthen UART Features | data transmission rate up to 12Mbps | auto software flow control(Xon/Xoff) | |
| separate baud rate generator | multi-point mode w/ auto half duplex transceiver | ||
| 128-byte TX FIFO | multi-point mode w/ auto TX enable | ||
| 384-byte RX FIFO | sleeping mode and remote waken up | ||
| can support 7, 8 or 9 data bits, 1 or 2 stop bits | half-duplex mode | ||
| auto hardware flow control(RTS/CTS or Dtr/DSR) | optional GPIO or Modem I/O | ||
| one 9-wire serial and three 5-wire serial can be custimized | |||
| Applicable Single Board Computer | |
|---|---|
| Single Board Computer | OS |
| OKMX6Q/DL-C | Linux3.0.35, Android4.4 |
| OKMX6Q/DL-S3 | Linux3.0.35, Android4.4 |
| OKMX6UL-C/C2 | Linux3.14.38 |
| OK335xD | Linux3.2, Android2.3/4.2 |
| OK335xS | Linux3.2, Android2.3/4.2 |
| OK335xS-II | Linux3.2 |
| OK4418/6818-C | Linux3.4.39, Android5.1.1 |
| Packing List | |
| 1x USB to quad UART module | 1x Mini USB cable |
