FT232RNQ-REEL

Controllers Overview

The FT232RNQ-REEL is a USB-to-UART bridge controller manufactured by FTDI. It integrates a full-speed USB interface with a UART port, featuring a 256-byte receive FIFO and a 256-byte transmit FIFO to manage data throughput efficiently. The device operates within a supply voltage range of 1.8V to 5.25V and supports data rates up to 3MBd for asynchronous serial transmission. It is housed in a compact 32-pin QFN package with an exposed pad (EP) for thermal dissipation. The component complies with the USB 2.0 specification and functions across an industrial temperature range of -40°C to +85°C.

Controllers Feature Summary

• Integrates complete USB protocol handling without requiring external firmware programming
• Includes built-in 256-byte RX and TX FIFOs for high data throughput management
• Supports configurable CBUS I/O pins for custom application control
• Features integrated clock generator outputs for driving external microcontrollers

Controllers Applications

• USB to RS232/RS422/RS485 level converters
• Legacy peripheral upgrades to USB connectivity
• Secure software dongles utilizing unique chip identification
• Direct connection of MCU or FPGA designs to USB hosts

Controllers Procurement Notes

Verify the specific suffix 'NQ' against official FTDI documentation to confirm pinout and electrical characteristics, as variations exist within the FT232R family. Ensure the reel quantity matches project requirements, typically 3000 units per standard manufacturer packaging. Confirm RoHS compliance status for environmental regulations. Validate moisture sensitivity level handling procedures during assembly to prevent package damage.

Controllers Selection Notes

Select this component when a robust USB-to-serial solution is required with integrated FIFO buffering to reduce host CPU overhead. The wide voltage input range allows compatibility with both 1.8V and 5V systems. Consider the QFN package size constraints and thermal requirements for the PCB layout. Verify that the internal EEPROM configuration meets the specific descriptor and CBUS settings needed for the target application.

Controllers Part Context

This part belongs to the FT232R series of USB UART interface controllers from Future Technology Devices International Ltd. The series is designed to simplify USB integration into embedded systems by handling the complex USB protocol internally. The FT232RNQ variant specifically utilizes a QFN form factor, offering a smaller footprint compared to traditional SSOP packages while maintaining similar functional capabilities.

Controllers Replacement Considerations

FT232RL-REEL: Alternative SSOP-28 package version with identical electrical functionality. FT232RQ-REEL: Alternative QFN-32 package version; verify if pin assignments are identical before substitution.