FT231XQ-R

Controllers Overview

The FT231XQ-R is a USB to Full Serial UART integrated circuit manufactured by FTDI. It operates within the FT231 series and supports USB 2.0 Full Speed standards with data rates up to 480 Mb/s. The device features a QFN-20 package suitable for SMD/SMT installation. Electrical specifications include a minimum operating supply voltage of 2.97 V and a maximum of 5.5 V. Operating power consumption is specified at 125 uA in low-power states and 8 mA during active operation. The component functions reliably across an extended temperature range from -40 C to +85 C.

Controllers Feature Summary

• Provides direct conversion between USB serial communication and standard asynchronous UART signals.
• Integrates a high-performance CMOS interface engine optimized for full-speed USB connectivity.
• Supports flexible baud rate generation without requiring external crystal oscillators.

Controllers Applications

• Embedded systems requiring USB connectivity for serial debugging and configuration.
• Industrial control interfaces utilizing RS-232, RS-422, or RS-485 protocols via external transceivers.
• Consumer electronics devices needing compact USB-to-UART bridging solutions.

Controllers Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure ESD handling procedures are followed due to moisture sensitivity classification. Cross-reference datasheet revisions to guarantee pinout compatibility with existing PCB layouts.

Controllers Selection Notes

Select this model when a compact QFN-20 footprint is required for space-constrained designs. Choose based on the need for standalone UART functionality without additional FIFO buffering found in other series members. Evaluate power constraints against the 8 mA active current draw. Consider thermal performance within the -40 C to +85 C operational envelope for environmental suitability.

Controllers Part Context

This component belongs to the FT231 family of USB interface controllers designed for cost-effective serial communication. It serves as a bridge between host USB ports and legacy serial peripherals. The XQ variant specifically denotes the QFN-20 package type. The R suffix typically identifies bulk reel packaging for automated assembly processes.

Controllers Replacement Considerations

FT231XS-U offers similar functionality in an SSOP-20 package. FT231XQ-T provides identical electrical characteristics but utilizes tray packaging instead of reels. Verify pin compatibility and software driver support before substituting these variants in existing designs.