FT232RL-REEL USB to UART Converter IC for Serial Communication Design

ElecSuppliers Part Number GuideAug 24, 2026

FT232RL-REEL Connects Modern USB Systems With Traditional UART Interfaces

Although USB has become a standard communication interface in computers and smart devices, many embedded systems still rely on UART communication.

Microcontrollers, industrial controllers and development boards often use UART because of its simplicity and reliability.

The FT232RL-REEL provides a bridge between USB and UART interfaces, allowing devices with serial communication capability to connect with modern USB-based systems.

This type of interface conversion remains important in embedded development, testing equipment and industrial communication products.

Why USB to UART Conversion Is Still Widely Used

UART is one of the oldest serial communication methods, but it continues to appear in electronic designs because it requires only simple connections.

Many embedded devices use UART for:

• Debugging

• Firmware updates

• Configuration commands

• Data communication

However, most computers no longer include traditional serial ports.

A USB UART bridge solves this compatibility problem by allowing a USB port to communicate with UART-based hardware.

FT232RL-REEL in Embedded Development

During hardware development, engineers frequently need access to the internal communication interface of a device.

The FT232RL-REEL can simplify this process by providing a convenient connection between development computers and embedded hardware.

Common development uses include:

Microcontroller Debugging

Engineers often use UART output to view system status information.

Examples include:

• Startup messages

• Error reports

• Debug information

Prototype Testing

During the prototype stage, USB UART conversion allows quick communication testing without designing a custom communication tool.

Configuration Interfaces

Many embedded products use serial commands to configure parameters or monitor system operation.

FT232RL-REEL Helps Simplify Embedded Hardware Design

Without a USB UART bridge, designers may need to create additional communication hardware.

Using an integrated converter IC can reduce:

• External component requirements

• PCB complexity

• Development effort

This is especially useful for products that need occasional connection to a computer but do not require a complete USB communication system.

Applications of FT232RL-REEL

The USB UART bridge approach can be found in many electronic products.

Industrial Equipment

Industrial controllers often include maintenance interfaces for technicians.

A USB serial connection provides a convenient way to access internal data.

IoT Devices

During development and production testing, engineers often rely on serial communication to configure connected devices.

Embedded Evaluation Platforms

Development boards frequently include USB UART functions to make programming and debugging easier.

Design Considerations for USB UART Interfaces

A successful USB communication design requires more than selecting the bridge IC.

Engineers should consider:

Driver Support

The operating system must recognize the USB device correctly.

Signal Integrity

USB and UART signals require appropriate PCB layout practices.

Power Configuration

The power supply arrangement should match the complete system design.

FT232RL-REEL Remains a Practical Choice for Serial Connectivity

Even with the growth of advanced communication protocols, UART remains valuable because of its simplicity and widespread use.

The FT232RL-REEL provides a straightforward method to connect USB hosts with UART-based electronic systems.

For embedded engineers, manufacturers and developers, USB to UART bridge solutions continue to be an important tool for communication, debugging and product development.