PDIUSBH11

· 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

NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output clamp current ratings are observed.

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

PDIUSBH11 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.

The PDIUSBH11 conforms to the USB specification 1.0 and I²C serial interface specification. It is also compliant with the USB Human Input Device and Monitor Control Class specifications.

The embedded function of the PDIUSBH11 appears as PORT1 to the host system and the four downstream ports are numbered 2 through  5.