Networking Silicon — 82540EP
Datasheet
19
Table 5. Power Specifications - D3cold
D3cold - wake-up enabled
D3cold - wake
disabled - max
power savings
mode disabled
D3cold - wake
disabled - max
power savings
mode enabled
a
unplugged/no link
@10 Mbps
@100Mbps
Typ Icc
(mA)
Max Icc
(mA)
Typ Icc
(mA)
Max Icc
(mA)
Typ Icc
(mA)
Max Icc
(mA)
Typ Icc
(mA)
Max Icc
(mA)
Typ Icc
(mA)
Max Icc
(mA)
3.3V
40
40
55
55
50
50
40
40
6
8
2.5V
20
20
30
30
55
55
20
20
0.1
0.1
1.5V
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)
3.3V
40
45
2.5V
40
45
1.5V
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-
enabled @10Mbps
D3cold wake-
enabled @100Mbps
D0 @1000Mbps
active
D3cold - wake
disabled - max
power savings
mode enabled
Typ Icc
(mA)
Max Icc
(mA)
Typ Icc
(mA)
Max Icc
(mA)
Typ Icc
(mA)
Max Icc
(mA)
Typ
Icc
(mA)
Max Icc
(mA)
Typ Icc
(mA)
Max Icc
(mA)
3.3V
40
40
60
60
60
60
130
130
6
8
