| USB 桥芯片 | ||||
| 型号 | 工作电压 | USB速度 | 功能 | 通讯接口 |
|---|---|---|---|---|
 |
3.0V~5.5V | Low Speed | USB HID 桥芯片 键盘, 鼠标, 自定义设备 |
UART (TXD/RXD, 19200 bps) |
 |
3.0V~5.5V | Full Speed | USB HID to Serial Bridge | UART, SPI Master, TWI(I2C) Master, GPIO |
 |
3.0V~5.5V | Full Speed | USB to UART Data Bridge (Virtual COM) |
UART (TXD,RXD) |
