82540EP Datasheet, PDF (23/46 Pages) Intel Corporation – 82540EP Gigabit Ethernet Controller

Networking Silicon — 82540EP
Table 5. Power Specifications - D3cold
D3cold - wake-up enabled
unplugged/no link
@10 Mbps
@100Mbps
D3cold - wake
disabled - max
power savings
mode disabled
D3cold - wake
disabled - max
power savings
mode enabled^a
Typ Icc Max Icc Typ Icc Max Icc
(mA)
(mA)
(mA)
(mA)
Typ Icc MaxIcc Typ Icc MaxIcc
(mA)
(mA)
(mA)
(mA)
Typ Icc
(mA)
Max Icc
(mA)
3.3 V
40
40
55
55
50
50
40
40
6
8
2.5 V
20
20
30
30
55
55
20
20
0.1
0.1
1.5 V
40
40
30
35
55
60
10
10
1
1
Total
Device
Power
240 mW
300 mW
385 mW
195 mW
20 mW
a. Special Note: To obtain the benefit of max power savings mode, do not use the internal voltage regulator control circuit and external pass transis-
tors. Use external switching regulators for highest efficiency.
Table 6. Power Specifications D(r) Uninitialized
D(r) Uninitialized
(LAN_PWR_GOOD=0)
Typ Icc
(mA)
Max Icc
(mA)
3.3 V
40
45
2.5 V
40
45
1.5 V
190
200
Total Device
Power
520 mW
Table 7. Power Specifications - Complete Subsystem
Complete Subsystem (Reference Design)
Including Magnetics, LED, Regulator Circuits
D3cold - wake
disabled - max
power savings
mode disabled
D3cold wake-
D3cold wake-
D0 @1000Mbps
enabled @10Mbps enabled @100Mbps
active
TypIcc MaxIcc
(mA) (mA)
Typ Icc
(mA)
Max Icc
(mA)
Typ Icc
(mA)
Max Icc
(mA)
Typ
Icc
(mA)
Max Icc
(mA)
3.3 V
40
40
60
60
60
60
130
130
D3cold - wake
disabled - max
power savings
mode enabled
Typ Icc Max Icc
(mA)
(mA)
6
8
17