Datasheet
Table Of Contents
- Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
- 1.0 Introduction
- 2.0 Pin Description and Configuration
- 3.0 Functional Description- 3.1 Transceiver
- 3.2 Auto-negotiation
- 3.3 HP Auto-MDIX Support
- 3.4 MAC Interface
- 3.5 Serial Management Interface (SMI)
- 3.6 Interrupt Management
- 3.7 Configuration Straps
- 3.8 Miscellaneous Functions
- 3.9 Application Diagrams
 
- 4.0 Register Descriptions- 4.1 Register Nomenclature
- 4.2 Control and Status Registers- TABLE 4-2: SMI Register Map
- 4.2.1 Basic Control Register
- 4.2.2 Basic Status Register
- 4.2.3 PHY Identifier 1 Register
- 4.2.4 PHY Identifier 2 Register
- 4.2.5 Auto Negotiation Advertisement Register
- 4.2.6 Auto Negotiation Link Partner Ability Register
- 4.2.7 Auto Negotiation Expansion Register
- 4.2.8 Mode Control/Status Register
- 4.2.9 Special Modes Register
- 4.2.10 Symbol Error Counter Register
- 4.2.11 Special Control/Status Indications Register
- 4.2.12 Interrupt Source Flag Register
- 4.2.13 Interrupt Mask Register
- 4.2.14 PHY Special Control/Status Register
 
 
- 5.0 Operational Characteristics
- 6.0 Package Information
- 7.0 Application Notes
- Appendix A: Data Sheet Revision History
- The Microchip Web Site
- Customer Change Notification Service
- Customer Support
- Product Identification System
- Worldwide Sales and Service

 2016 Microchip Technology Inc. DS00002165B-page 75
LAN8720A/LAN8720AI
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Device: LAN8720A
Temperature 
Range:
CP =  0C to +85C (Extended Commercial)
i-CP =  -40C to +85C (Industrial)
Tape and Reel 
Option:
Blank = Standard packaging (tray)
TR = Tape and Reel
(1) 
Package: Blank = Punch Package (24-QFN)
ABC = Sawn Package (24-SQFN)
Examples:
a) LAN8720Ai-CP-TR
Industrial temp., Tape & Reel, 24-QFN (Punch)
b) LAN8720A-CP-ABC
Ext. commercial temp., Tray, 24-SQFN (Sawn)
Note 1: Tape and Reel identifier only appears in the 
catalog part number description. This 
identifier is used for ordering purposes and is 
not printed on the device package. Check 
with your Microchip Sales Office for package 
availability with the Tape and Reel option.
PART NO.
[X]
Temperature
Range
Device
[X]
(1)
Tape & Reel
Option
-
-
[XXX]
Package










