FT260Q-R

Controllers Overview

The FT260Q-R is a single-chip HID-class USB to UART/I2C bridge controller manufactured by FTDI. It supports USB 2.0 Full Speed operation at 12 Mb/s with an integrated oscillator PLL, eliminating the need for external crystals. The device features two independent interfaces: a UART interface and an I2C interface, each with dedicated physical endpoints. It includes an on-chip eFUSE for programming VID, PID, and serial numbers, alongside a unique serial number generation engine. Power management supports bus-powered, self-powered, and bus-powered with power switching configurations, drawing 24 mA typically in active mode and 385 µA in suspend mode.

Controllers Feature Summary

• HID-class compatibility allows driverless operation on major operating systems without custom drivers.
• Integrated dual-interface architecture provides simultaneous UART and I2C connectivity on a single chip.
• On-chip eFUSE enables secure storage of vendor-specific parameters and unique serial numbers.

Controllers Applications

• Driverless USB-to-UART communication in consumer electronics
• USB-to-I2C bridging for sensor data acquisition
• Embedded system debugging and programming interfaces

Controllers Procurement Notes

Verify the specific suffix 'R' indicates tape-and-reel packaging when ordering. Confirm that the eFUSE contents match project requirements, as these parameters are programmed during manufacturing and cannot be altered post-production. Ensure the host system supports HID-class enumeration for seamless integration.

Controllers Selection Notes

Select the FT260Q-R when driverless USB connectivity is required for both UART and I2C protocols. Compare against standard CDC-ACM devices if OS-level driver installation is permissible. Consider the QFN-24 package constraints for PCB layout and thermal management relative to available board space.

Controllers Part Context

The FT260Q-R belongs to the FT260 series of USB bridge controllers. It shares core functionality with variants like the FT260S-U but differs in packaging and reel specifications. This component addresses the market demand for compact, driverless USB interfaces in space-constrained embedded designs.

Controllers Replacement Considerations

Direct pin-compatible replacements are limited due to the proprietary HID-class implementation. Alternative solutions such as the Silicon Labs CP2110 or Holtek HT42B564-X offer similar HID-class functionality but require software adaptation for register-level command sets.