TUSB3410IRHB

Overview

The TUSB3410IRHB is a USB to serial port controller manufactured by Texas Instruments, designed to bridge USB 2.0 Full Speed (12 Mb/s) interfaces with RS-232 or IrDA serial devices. Operating on a single 3.3 V supply, the device integrates an internal oscillator and supports UART protocols within a 32-pin VQFN package. It functions as a serial port controller compliant with USB 2.0 standards, featuring a wide operating temperature range from -40°C to +85°C. The component facilitates direct connection between host systems and legacy serial peripherals without requiring external clock sources.

Feature Summary

• Integrates USB 2.0 Full Speed controller with RS-232/IrDA serial interface capabilities
• Operates at 3.3 V with a typical supply current of 15 mA
• Includes internal oscillator eliminating need for external crystal
• Available in compact 32-pin VQFN surface-mount package

Applications

• Converting USB host ports to RS-232 serial connections
• Enabling IrDA infrared communication via USB
• Industrial equipment interfacing requiring serial-to-USB conversion
• Embedded systems integrating legacy UART peripherals

Procurement Notes

Verify the specific suffix 'RHB' corresponds to the tube packaging format rather than reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design files match the VQFN-32 footprint specifications provided in the datasheet to prevent assembly errors.

Selection Notes

Select this model for applications requiring Full Speed USB connectivity with integrated serial protocol support. The internal oscillator simplifies bill of materials compared to components requiring external crystals. Verify that the 3.3 V voltage requirement aligns with the target system power rails and that the thermal performance meets the -40°C to +85°C operational envelope.

Part Context

This component belongs to the TUSB3410 series of USB interface ICs. It serves as a specialized bridge controller distinct from general-purpose USB hubs or high-speed transceivers. The part is engineered specifically for low-power serial communication tasks, differentiating it from broader interface solutions by its dedicated UART and IrDA hardware support.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate alternative USB-to-serial controllers based on pin compatibility and protocol support if substitution is required.