​Product Parameters​​

​​Core Chip​​: FT232RL (FTDI , USB 2.0 Compatible)

​​Input Voltage​​: 5V DC (USB Bus Powered, Range 4.5V-5.5V)

​​Output Level​​: 1.8V/3.3V/5V TTL (Jumper-Selectable, ±5% Accuracy)

​​Communication Protocol​​: UART (Supports 7/8 Data Bits, 1/2 Stop Bits, No/Odd/Even Parity)

​​Baud Rate​​: 300 bps to 3 Mbps (Adaptive)

​​Protection​​: ESD Protection (±15kV on USB Data Lines), Short-Circuit Protection (Output Current ≤500mA)

​​Operating Temperature​​: -40°C to +85°C (Reliable)

​​Power Consumption​​: ≤20mA (Active), ≤1μA (Sleep Mode)

​​Connector​​: USB-A + 6-Pin 2.54mm Header (100mil Spacing)

​​Pin Functions​​

​​VCC​​: Output Power Positive (Jumper-Selectable 1.8V/3.3V/5V), Max Load 200mA.

​​GND​​: System Ground (Must Connect to Target Device).

​​TXD​​: Serial Data Transmit (Connect to Target Device's RXD).

​​RXD​​: Serial Data Receive (Connect to Target Device's TXD).

​​RTS#​​: Request to Send (Active Low, for Hardware Flow Control).

​​CTS#​​: Clear to Send (Active Low, for Hardware Flow Control).

​​DTR#​​: Device Ready (Active Low, for Auto-Reset During Programming).

​​3V3OUT​​: Fixed 3.3V Auxiliary Output (Max 50mA) .

​​FAQ​​

1.
​​Q: Computer Does Not Recognize Device (No COM Port)?​​

​​A​​: Uninstall third-party serial drivers (e.g., CH340) and install FTDI official drivers. Ensure direct connection to host USB port (not via Hub) .

2.
​​Q: Garbled Data or Packet Loss?​​

​​A​​: Verify jumper voltage matches target device (e.g., 3.3V for ESP32). Use standard baud rates (e.g., 9600, 115200) with