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FT232RL-TUBE

FT232RL-TUBE

FTDI, Future Technology Devices International Ltd
USB Bridge, USB to UART USB 2.0 UART Interface 28-SSOP

Overview

The FT232RL is a single-chip USB to asynchronous serial data transfer interface that handles the entire USB protocol on-chip, eliminating the need for USB-specific firmware programming. It features integrated clock generation, USB termination resistors, and a 1024-bit internal EEPROM for device configuration. This bridge supports logic levels from 1.8V to 5V, making it a versatile solution for connecting microcontrollers to a host PC via USB.

Why Choose This Part

The FT232RL simplifies design by integrating the oscillator and USB resistors, reducing external BOM count. It is highly valued for its robust, royalty-free Virtual Com Port (VCP) drivers which ensure broad compatibility across Windows, Mac, and Linux systems. Additionally, the configurable CBUS I/O pins and integrated level converters allow for direct interfacing with various logic voltages without additional components.

Applications

USB to RS-232/RS-422/RS-485 Converters
Providing a reliable USB interface for industrial serial communication standards using external level shifters.
Microcontroller Debugging
Acting as a dedicated bridge for UART-based bootloaders and serial console output during firmware development.
USB Dongles and Hardware Keys
Utilizing the unique FTDIChip-ID feature for hardware encryption and security applications.
Legacy Peripheral Upgrades
Retrofitting older hardware designs with USB connectivity without redesigning the core serial protocol.

Key Specifications

Function Bridge, USB to UART
Protocol USB
Interface UART
Standards USB 2.0
Package / Case 28-SSOP (0.209", 5.30mm Width)
Current - Supply 15mA
Voltage - Supply 3.3V ~ 5.25V
Operating Temperature -40degC ~ 85degC
Supplier Device Package 28-SSOP

Getting Started

To integrate this part, design your PCB following the reference circuit for bus-powered or self-powered modes as detailed in the datasheet. Drivers are available from the FTDI website as either VCP (Virtual COM Port) or D2XX (Direct) versions. For testing, many engineers use the FT232RL-based 'USB-RS232-WE' cables or generic breakout boards to verify serial communication before final assembly.

Part of FTDI FT232 / FT2232 family » FT232RL

FT232RL Family

Also available as: FT232RL-REEL, FT232RL

Also Consider

CP2102N SiLSilicon Labs - A more modern, cost-effective USB-to-UART bridge that offers high data rates and smaller package options.
CH340G WCH - An extremely low-cost alternative widely used in consumer electronics and development boards.