iii

CONTENTS

1.0

About This Document.......................................................................................................... 1

1.1

Additional Information Sources ...................................................................................... 1

1.2

Electronic Information..................................................................................................... 1

1.3

Product Summary........................................................................................................... 2

2.0

Nomenclature Overview ...................................................................................................... 4

3.0

Pinout .................................................................................................................................. 6

4.0

Signals .............................................................................................................................. 12

5.0

Address Map ..................................................................................................................... 16

6.0

Electrical Characteristics ................................................................................................... 17

6.1

Operating Frequencies ................................................................................................. 17

6.2

DC Characteristics........................................................................................................ 18

6.3

Explanation of Timing Symbols .................................................................................... 20

6.4

System Bus AC Characteristics.................................................................................... 21

6.4.1

System Bus Timing Diagrams ...............................................................................23

6.4.2

Real-time Wait State Function AC Characteristics ................................................27

6.4.3

Real-time Wait State Function Timing Diagrams ..................................................28

6.5

AC Characteristics — Synchronous Mode 0 ................................................................ 30

6.6

External Clock Drive ..................................................................................................... 30

6.7

Testing Waveforms ...................................................................................................... 31

7.0

Thermal Characteristics .................................................................................................... 32

8.0

Design Considerations ...................................................................................................... 32

8.1

External Bus Timing and Peripheral Timing Affected by PLLSEL2:0 Selection ........... 32

8.2

Low Clock Mode Frequency ......................................................................................... 32

8.3

Setting RXFFRC Bit Clears Only the Oldest Packet in the FIFO ................................. 32

8.4

Series Resistor Requirement for Impedance Matching ................................................ 32

8.5

Pullup Resistor Requirement for 8x930Hx Hub devices............................................... 32

8.6

Powerdown Mode Cannot Be Invoked Before USB Suspend ...................................... 32

8.7

Unused Downstream Ports........................................................................................... 33

9.0

8x930Hx Errata ................................................................................................................. 33

10.0 Datasheet Revision History ............................................................................................... 33