Texas Instruments TUSB2077A Data Sheet manual specifications guide
Summary
This comprehensive guide details the TUSB2077A, a high-performance 3.3V CMOS USB Hub ASIC designed for advanced product development. It offers up to seven full-speed downstream ports and supports both bus-powered and self-powered operations. The manual covers essential features for system integrators, including sophisticated power management (overcurrent detection, suspend/resume), bus/self-power dynamic switching, integrated transceivers, and the ability to customize USB IDs using an external EEPROM. Ideal for manufacturers looking to create robust, cost-effective end products requiring reliable USB connectivity.
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 20 |
| File Size | 336.76 KB |
| Published | May 29, 2026 |
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Frequently Asked Questions
Is software programming required for the TUSB2077A hub?
No, because this device is implemented with a digital state machine instead of a microcontroller. Details are provided in the manual.
How can I customize the product's Vendor and Product IDs (VID/PID)?
To use custom VID and PID, you must tie EXTMEM low and connect an external EEPROM for storage. Terminals 7 and 8 handle this interface.
Does the device provide visualization of hub status or individual port status?
Yes, there are three LED indicator control output terminals and various functional terminals (HUBCFG, PORTPWR) that enable visualized monitoring of the hub and its ports.
What external devices are required for overcurrent protection?
External power-management devices, like the TPS2044, are needed to detect overcurrent conditions individually or ganged. The resulting signals disable the corresponding PWRON terminals.