AU9254A21 Просмотр технического описания (PDF) - Unspecified

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AU9254A21

single chip 4-port USB hub controller

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Table of Contents

1.0 Introduction ...................................................................................................... 1

1.1. Description............................................................................................................. 1

1.2. Features ................................................................................................................. 1

2.0 Application Block Diagram ............................................................................. 3

3.0 Pin Assignment................................................................................................ 5

4.0 System Architecture and Reference Design................................................. 10

4.1. AU9254 Block Diagram......................................................................................... 10

4.2. Sample Schematics11 ............................................................................................. 11

5.0 Electrical Characteristics ................................................................................ 15

5.1. Absolute Maximum Ratings................................................................................... 15

5.2. Recommended Operating Conditions .................................................................... 15

5.3. General DC Characteristics.................................................................................... 15

5.4. DC Electrical Characteristics for 5 volts operation................................................ 16

5.5. DC Electrical Characteristics for 3.3 volts operation............................................. 16

5.6. Crystal Oscillator Circuit Setup for Characterization............................................. 17

5.7. USB Transceiver Characteristics ........................................................................... 17

5.8. ESD Test Results ................................................................................................... 22

5.9. Latch-Up Test Results............................................................................................ 23

6.0 Mechanical Information................................................................................... 25

6.1 Normal Size Package (Body Size 209 mil)………………………………………..25

6.2 Small Size Package (Body Size 150 mil)…………………………………………27

TABLE OF CONTENTS i

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