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Features
1. Adopt new version CH343G chip. Compared with CH340G, it supports higher data rate (up to 6Mbps) and more serial port IO levels (5V / 3.3V / 2.5V / 1.8V)
2. Support Mac, Linux, Android, Windows 7/8/8.1/10/11
3. Onboard resettable Fuse and Transient Voltage Suppressor, anti-overcurrent and anti-overvoltage, anti-surge, anti-static, improve shock resistance, stable and safe communication performance
4. Onboard IO protection circuits, anti-surge, anti-static, stable and safe communication performance
5. Onboard 3.3V and 5V TTL level switch pins for selecting TTL communication level
6. Support 3.3V/5V output (the module is powered by USB, and the onboard jumper should be shorted to 3.3V or 5V accordingly)
7. Adopt double-sided black immersion gold process, which is durable and has a good look
Indictor Description
1. PWR: Power indicator, turn on when the voltage is detected from USB interface
2. RXD: Receiving indicator, turn on when data is sent back from the device interface
3. TXD: Sending indicator, turn on when data is sent from USB
Pinouts Definition
1. VCC: 5V or 3.3V output for external device (configured by jumper)
2. GND: Ground
3. TXD: Connects to MCU.RXD
4. RXD: Connects to MCU.TXD
5. RTS: Connects to MCU.CTS
6. CTS: Connects to MCU.RTS
Specifications
1. Host interface: USB
2. Device interface: UART
3. Communication range: 50bps ~ 6Mbps
4. USB device interface: Micro USB
5. Protection: resettable Fuse, ESD protection
6. UART interface connector: 6-pin right-angle pinheader
7. Protection: IO protection diode