SLLS414B is a fully compliant USB full-speed hub with integrated USB transceivers, 3.3V low-power ASIC logic, two power source modes, support for full-speed and low-speed operations on all downstream ports, power switching and overcurrent reporting per port or ganged, suspend and resume operations support, support for custom vendor ID and product ID with external serial EEPROM, 3-state EEPROM interface, push-pull outputs for PWRON, noise filtering on OVRCUR, support for 6-MHz or 48-MHz operation, and new functional terminals to reduce board material cost.
The TUSB2077A is a 3.3‑V CMOS 7‑port USB hub that complies with the USB 1.1 specification. It integrates full‑speed and low‑speed transceivers, supports both bus‑powered and self‑powered operation, and offers an optional serial EEPROM interface for custom VID/PID programming. The device uses a digital state machine instead of a microcontroller, eliminating the need for software programming.
The datasheet details the hub's functional block diagram, pin assignments, electrical and mechanical specifications, and application information such as power‑management options and over‑current protection. It also includes the mechanical drawing of the 48‑terminal LQFP package and the standard TI product notice.
| Number of downstream ports | 7 |
|---|---|
| Package type | 48‑terminal LQFP |
| Operating temperature range | 0 °C to 70 °C |
| Clock source options | 6 MHz crystal or 48 MHz oscillator |
The hub supports both bus‑powered and self‑powered modes.
It provides seven downstream USB ports.
It is offered in a 48‑terminal LQFP package.