
Description:
The USB TO TTL (C) is a rugged USB‑to‑TTL serial interface cable, enabling seamless communication between a PC (or other USB host) and devices operating at TTL logic levels—such as microcontrollers or sensors. Perfect for industrial debugging, it integrates the original FT232RNL chip and supports robust hardware‑based flow control (RTS/CTS) for reliable bidirectional data transfer.

Specification:
| Product category | Industrial USB TO TTL serial cable |
|---|---|
| Chip scheme | FTDI original FT232RNL |
| Host port | USB |
| Data rate | 300bps ~ 3Mbps |
| Device Port | UART |
| USB port | Connector: USB-A |
| Protection: self-recovery fuse, ESD protection | |
| UART port | Connector: separated 6-pin female header |
| Protection: IO protection diode | |
| Indicator | PWR: power indicator, turns on when there is a USB connection and voltage is detected |
| TXD: TX indicator, turns on while the USB port is sending data | |
| RXD: RX indicator, turns on while the device port is sending data back | |
| Cable | Black, PVC sheath, total length 1m |
Features:
- Adopts original FT232RNL chip, with stable high-speed communication, reliability, and better compatibility.
- Built-in self-recovery fuse and ESD for over-current/over-voltage protection, counter-current proof, and improved shock resistance.
- Onboard IO protection, anti-surge design, with stable communication and safety.
- Onboard TTL serial port 3.3V/5V level translation circuit, for switching TTL communication level.
- Onboard 3 x LED indicators for checking power and signal transmitting status.
- Plastic case, sandblasting process, nice-looking and compact.
Product Interface:

Pin Description:
| VCC | 3.3V or 5V output, configured by switch |
|---|---|
| GND | Ground |
| TXD | Connecting to MCU.RXD (signal direction: MCU.RX < < FT232 < < PC.TX) |
| RXD | Connecting to MCU.TXD (signal direction: MCU.TX > > FT232 > > PC.RX) |
| RTS | Connecting to MCU.CTS (signal direction: MCU.CTS < < FT232 < < PC.RST) |
| CTS | Connecting to MCU.RTS (signal direction: MCU.RTS > > FT232 > > PC.CTS) |
Useful Link:
Waveshare Industrial USB TO TTL (C) 6-pin Serial Cable
Package Includes:
1 x Waveshare Industrial USB Type‑C to TTL Serial Cable

