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 enableda
unplugged/no link @10 Mbps @100Mbps
Typ Ic c
(mA) Max Icc
(mA) Ty p I cc
(mA) Max Icc
(mA) Typ I cc
(mA) Max Icc
(mA) Ty p I cc
(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 volta ge regulator control circuit and external pass transis-
tors. Use external switching regulators for highest efficiency.
Table 6. Power Specificatio n s D (r ) Un initialized
D(r) Uninitialized
(LAN_PWR_GOOD=0)
Typ Ic c
(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, Regula tor 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 I cc
(mA) Max Icc
(mA)
Typ
Icc
(mA)
Max Icc
(mA) Ty p Ic c
(mA) Max Icc
(mA)
3.3V 40 40 60 60 60 60 130 130 6 8