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The FT231XQ-R is a compact USB-to-UART bridge IC from FTDI, designed to facilitate seamless communication between USB and asynchronous serial interfaces.

Key Specifications

• Function: USB 2.0 Full-Speed to Full Handshake UART Bridge

• Data Transfer Rate: Up to 3 Mbps

• Supply Voltage: 3.3V to 5.5V

• Current Consumption: Approximately 8 mA during operation

• Operating Temperature Range: -40°C to +85°C

• Package: 20-pin QFN (4×4 mm)

• Packaging: Tape & Reel (indicated by the “-R” suffix)

Features

• Integrated Components:

  • 2048-byte Multi-Time Programmable (MTP) memory for storing device descriptors and CBUS I/O configurations

  • Internal clock oscillator, eliminating the need for an external crystal

• Configurable CBUS I/O Pins: Four CBUS pins that can be configured for various functions

• USB Charger Detection: Supports USB Battery Charger Detection (USB BC 1.2)

• Driver Support: Compatible with FTDI’s royalty-free Virtual COM Port (VCP) and Direct (D2XX) drivers for major operating systems

• Low Power Consumption: Efficient operation suitable for battery-powered applications

The FT231XQ-R is ideal for applications requiring USB connectivity to UART interfaces, such as microcontrollers, FPGAs, or other serial devices. Its compact size and integrated features make it suitable for space-constrained designs.

For detailed technical information, refer to the FT231X Datasheet.