 2017 Microchip Technology Inc.

DS00002245B-page 3

KSZ8041NL/RNL

Table of Contents

1.0 General Description ........................................................................................................................................................................ 4

2.0 Pin Description and Configuration .................................................................................................................................................. 6

3.0 Functional Description .................................................................................................................................................................. 17

4.0 Registers ....................................................................................................................................................................................... 29

5.0 Operational Characteristics ........................................................................................................................................................... 38

6.0 Electrical Characteristics ............................................................................................................................................................... 39

7.0 Timing Diagrams ........................................................................................................................................................................... 40

8.0 Selection of Isolation Transformer ................................................................................................................................................ 50

9.0 Selection of Reference Crystal ..................................................................................................................................................... 51

10.0 Package Outline & Recommended Land Pattern ....................................................................................................................... 52

Appendix A: Data Sheet Revision History ........................................................................................................................................... 53

The Microchip Web Site ...................................................................................................................................................................... 54

Customer Change Notification Service ............................................................................................................................................... 54

Customer Support ............................................................................................................................................................................... 54

Product Identification System ............................................................................................................................................................. 55