TUSB2077APT

Controllers Overview

The TUSB2077APT is a USB 2.0 hub controller manufactured by Texas Instruments, designed to expand a single upstream USB connection into seven downstream ports. It supports Full Speed (12 Mb/s) data rates and operates within a supply voltage range of 3 V to 3.6 V, with a typical operating current of 40 mA. The device is housed in a 48-lead LQFP package suitable for surface mount technology. It features an optional serial EEPROM interface for storing configuration data and operates reliably across a commercial temperature range from 0°C to +70°C.

Controllers Feature Summary

• Provides seven downstream USB ports for connecting multiple peripherals to a single host controller.
• Includes an optional serial EEPROM interface to store hub configuration and identification data.
• Supports self-powered operation with independent power control for downstream ports.

Controllers Applications

• Desktop computer peripheral expansion systems
• Industrial control panels requiring multiple USB connections
• Embedded devices needing additional USB connectivity

Controllers Procurement Notes

Verify the specific suffix 'APT' against the manufacturer's official datasheet to confirm the package type and tape/reel specifications. Ensure that the procurement documentation matches the exact part number to avoid confusion with similar variants like TUSB2077APTR. Confirm RoHS compliance status through the official component database before finalizing orders.

Controllers Selection Notes

Select this component when a design requires exactly seven downstream USB ports with Full Speed support. Consider the LQFP-48 package constraints for PCB layout. Verify that the system power budget accommodates the 40 mA quiescent current plus downstream load requirements. Ensure the host controller supports the necessary USB 2.0 signaling standards for reliable enumeration.

Controllers Part Context

The TUSB2077A belongs to Texas Instruments' family of USB 2.0 hub controllers, which also includes four-port variants such as the TUSB2046B. This series is characterized by integrated power switches and EEPROM interfaces. The TUSB2077APT specifically denotes the leaded plastic quad flatpack variant, distinguishing it from reel-packaged versions used in high-volume automated assembly lines.

Controllers Replacement Considerations

The TUSB2077APTR is a functional equivalent differing primarily in packaging format (reel vs. tube). Direct pin-to-pin replacements are limited within the same family; verify compatibility with TUSB2046B only if reducing port count to four is acceptable.