 2007 - 2016 Microchip Technology Inc.

DS000002249A-page 3

USB2503/USB2503A

Table of Contents

1.0 Introduction ..................................................................................................................................................................................... 4

2.0 Pin Table 3-Port .............................................................................................................................................................................. 5

3.0 Pin Configuration 3-Port Hub .......................................................................................................................................................... 6

4.0 3-Port Hub Block Diagram .............................................................................................................................................................. 7

5.0 Functional Block Description ......................................................................................................................................................... 12

6.0 XNOR Test .................................................................................................................................................................................... 30

7.0 DC Parameters ............................................................................................................................................................................. 31

8.0 AC Specifications .......................................................................................................................................................................... 34

9.0 Package Outline ............................................................................................................................................................................ 35

Appendix A: Data Sheet Revision History ........................................................................................................................................... 37

The Microchip Web Site ...................................................................................................................................................................... 38

Customer Change Notification Service ............................................................................................................................................... 38

Customer Support ............................................................................................................................................................................... 38

Product Identification System ............................................................................................................................................................. 40