DESCRIPTION

The Philips Semiconductors PDIUSBH11 is a compound USB hub IC (hub plus embedded function).

It is used in a microcontroller based system and communicates with the system microcontroller over the I2C serial bus. This modular approach to implementing a hub and embedded function allows the designer to maintain the system microcontroller of choice and retain existing architecture. This cuts down development time and offers the most cost-effective solution.

Ideal applications for the IC include computer monitors and keyboards.

FEATURES

• Complies with the Universal Serial Bus specification Rev. 1.0

• Four downstream ports with per packet connectivity

• Embedded function with two endpoints (control and interrupt)

• Integrated FIFO memory for hub and embedded function

• Automatic protocol handling

• Versatile I2C interface

• Allows software control of monitor

• Compliant with USB Human Interface and Display Device Class

• Single 3.3V supply with 5V tolerant I/O