TUSB2077APTR - 

制造商：

TEXAS INSTRUMENTS TEXAS INSTRUMENTS

制造商产品编号：

TUSB2077APTR

仓库库存编号：

2496596

技术数据表：

(EN)

The TUSB2077APTR is a 7-port Full-Speed USB 2.0 Hub with optional serial EEPROM Interface. This device is implemented with a digital state machine instead of a microcontroller, no software programming is required. Fully compliant USB transceivers are integrated into the ASIC for all upstream and downstream ports. The downstream ports support full-speed and low-speed devices by automatically setting the slew rate according to the speed of the device attached to the ports. The configuration of the BUSPWR terminal selects either the bus-powered or self-powered mode. The introduction of the DP0 pull-up resistor disable terminal, DP0PUR, makes it much easier to implement an onboard bus/self-power dynamic-switching circuitry. The three-LED indicator control output pins also enable the implementation of visualized status monitoring of the hub and its downstream ports.

• Integrated USB transceiver
• 3.3V Low-power ASIC logic
• Two power source modes
• Self-powered mode supporting seven downstream ports
• Bus-powered mode supporting four downstream ports
• All downstream ports support full-speed and low-speed operations
• Power switching and overcurrent reporting is provided ganged or per port
• Supports suspend and resume operations
• Suspend status pin available for external logic Power Down
• Supports custom vendor ID and product ID With external serial EEPROM

• 3-state EEPROM interface allows EEPROM sharing
• Noise filtering on OVRCUR provides immunity to voltage spikes
• Supports 6MHz operation through a crystal input or a 48MHz input clock
• Green product and no Sb/Br