Texas Instruments TUSB2046BIRHBT TUSB2046BIRHBT USB Interface Hub Controller 1.1 3.3 V 3.6 QFN 32 Pins

The TUSB2046BIRHBT is a 4-port Full-Speed Universal Serial Bus Hub that provides one upstream port and four downstream ports in compliance with the Universal Serial Bus (USB) specification as a full-speed hub. Because this device is implemented with a digital state machine instead of a microcontroller, no firmware 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 pin selects either the bus-powered or the self-powered mode. The TUSB2046B provides the flexibility of using a 6 or a 48MHz clock. The logic level of the TSTMODE terminal controls the selection of the clock source.

• Integrated USB transceivers
• 3.3V Low power ASIC logic
• One upstream port and 4 downstream ports
• Two power source modes (self-powered mode, bus-powered mode)
• All downstream ports support full-speed and low-speed operations
• Power switching and over-current reporting is provided ganged or per port
• Supports suspend and resume operations
• Suspend status pin available for external logic power down
• 3-state EEPROM interface allows EEPROM sharing
• Push-pull outputs for PWRON eliminate the need for external pull-up resistors
• Noise filtering on OVRCUR provides immunity to voltage spikes
• Supports low EMI emission achieved by a 6MHz crystal input
• No special driver requirements
• Supports 6MHz operation through a crystal input or a 48MHz input clock
• Green product and no Sb/Br

Applications

Computers & Computer Peripherals, Consumer Electronics

Warnings This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Other details

Brand	TEXAS INSTRUMENTS
Part Number	TUSB2046BIRHBT
Quantity	Each (Supplied on Cut Tape)

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