SMSC LAN8720i User Manual

Page of 79
Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720/LAN8720i
69
Revision 1.0 (05-28-09)
DATASHEET
Note: The current at VDDCR is either supplied by the internal regulator from current entering at
VDD2A, or from an external 1.2V supply when the internal regulator is disabled.
Note 7.3
This is calculated with full flexPWR features activated: VDDIO = 1.8V and internal regulator
disabled. 
Note 7.4
Current measurements do not include power applied to the magnetics or the optional
external LEDs. 
10BASE-T /W TRAFFIC
Max
9.9
12.8
6.4
29.1
96
Typical
8.8
11.3
5.6
25.7
84.8
Min
7.1
9.7
3
19.8
40.5
ENERGY DETECT POWER 
DOWN
Max
4.5
2.7
0.3
7.5
24.8
Typical
4
1.5
0.2
5.7
18.8
Min
3.9
1.2
0
5.1
14.3
GENERAL POWER DOWN
Max
0.4
2.5
0.2
3.1
10.2
Typical
0.4
1.3
0.2
1.9
6.3
Min
0.4
1
0
1.4
2.5
Table 7.5  Power Consumption Device Only (50MHz REF_CLK OUT MODE)