82544EI Datasheet, PDF (22/52 Pages) Intel Corporation – Gigabit Ethernet Controller

82544EI Gigabit Ethernet Controller Networking Silicon Datasheet
4.2
Recommended Operating Conditions
Table 2. Recommended Operating Conditions^a
Symbol
Parameter
Min
Max
Units
V_DD(3.3)
V_DD(2.5)
V_DD(1.8)
V_DD(1.5)
VIO
DC supply voltage on VDDD or AVDDH^b
DC supply voltage on AVDDL^c
DC supply voltage on DVDDH^c
DC supply voltage on DVDDL^c
PCI bus voltage reference
3.0
3.6
V
2.38
2.62
V
1.71
1.89
V
1.43
1.57
V
3.0
5.25
V
t_R/t_F
Input rise/fall time (normal input)
t_r/t_f
Input rise/fall time (Schmitt input)
T_A
Operating temperature range (ambient)
T_J
Junction temperature
0
200
ns
0
10
ms
0
70
C
≤125
C
a. For normal device operations, adhere to the limits in this table. Sustained operation of a device at conditions exceeding
these values, even if they are within the absolute maximum rating limits, might result in permanent guaranteed if conditions
exceed recommended operating conditions.
b. It is recommended that VDD0 = AVDDH during powerup and normal operation.
c. It is recommended that both VDDO and AVVDH are greater than AVDDL > DVDDH > DVDDL during powerup. However,
voltage sequencing is not a strict requirement as long as the power supply ramp is faster than approximately 200 ms.
4.3
Targeted DC Specifications
Table 3. DC Specifications
Symbol
Parameter
V_DD(3.3)
V_DD(2.5)
V_DD(1.8)
V_DD(1.5)
DC supply voltage on VDDO or
AVDDH
DC supply voltage on AVDDL
DC supply voltage on DVDDH
DC supply voltage on DVDDL
Condition
Min Typ Max Units
3.00 3.3 3.60 V
2.38 2.5 2.62 V
1.71 1.8 1.89 V
1.43 1.5 1.57 V
Table 4. Power Supply Characteristics – 1 (Sheet 1 of 2)
Symbol
Parameter
I_CC(3.3) 3.3 V supply current
Condition
TBI mode
1000BASE-T
100BASE-T
10BASE-T
Powerdown^c
Quiescent^d
Min Typ^a Max^b Units
200 230 mA
130 160
90 110
85 105
85 105
50
60
18
Datasheet