lan8720 Standard Microsystems Corp., lan8720 Datasheet - Page 73
lan8720
Manufacturer Part Number
lan8720
Description
Small Footprint Rmii 10/100 Ethernet Transceiver With Hp Auto-mdix Support
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN8720.pdf
(78 pages)
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Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
Chapter 8 Application Notes
SMSC LAN8720/LAN8720i
8.1
8.1.1
Interface
RMII
The LAN8720 requires few external components. The voltage on the magnetics center tap can range
from 2.5 - 3.3V.
RMII Diagram
Application Diagram
2
2
2
nINT
MDIO
MDC
TXD[1:0]
TXEN
RXD[1:0]
RXER
LED[2:1]
nRST
Figure 8.1 Simplified Application Diagram
10/100 PHY
LAN8720
24-QFN
RMII
DATASHEET
XTAL1/CLKIN
73
XTAL2
RXN
RXP
TXN
TXP
Mag
25MHz
Revision 1.0 (04-15-09)
RJ45
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