High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
15.3
Power Consumption
This section details the power consumption of the LAN9312. Power consumption values are provided
for both the device-only, and for the device plus the Ethernet components on ports 1 and 2.
Table 15.1 Supply and Current (10BASE-T Full-Duplex)
TYPICAL
(@ 3.3V)
MAXIMUM
(@ 3.6V)
PARAMETER
UNIT
Supply current at 3.3V
(VDD33A1, VDD33A2, VDD33BIAS, VDD33IO)
165
185
mA
Power Dissipation (Device Only)
550
1245
25
670
1435
mW
mW
Power Dissipation (Device and Ethernet components)
o
Ambient Operating Temperature in Still Air (T )
Note 15.4
C
A
Table 15.2 Supply and Current (100BASE-TX Full-Duplex)
TYPICAL
(@ 3.3V)
MAXIMUM
(@ 3.6V)
PARAMETER
UNIT
Supply current
(VDD33A1, VDD33A2, VDD33BIAS, VDD33IO)
255
295
mA
Power Dissipation (Device Only)
845
1130
25
1070
1385
mW
mW
Power Dissipation (Device and Ethernet components)
o
Ambient Operating Temperature in Still Air (T )
Note 15.4
C
A
Note 15.4 Over the conditions specified in Section 15.2, "Operating Conditions**".
Note: Power dissipation is determined by operating frequency, temperature, and supply voltage, as
well as external source/sink current requirements.
Revision 1.2 (04-08-08)
442
SMSC LAN9312
DATASHEET
SMSC [ SMSC CORPORATION ]
