AX88178
USB to 10/100/1000 Gigabit Ethernet/HomePNA Controller
Note: The capacitance listed above does not include pad capacitance and package capacitance. One can estimate pin
capacitance by adding a pad capacitance of about 0.5pF and the package capacitance.
7.1.4 DC Characteristics of 2.5V I/O Pins
Symbol
VDD2
Temp
Vil
Parameter
Power supply of 2.5V I/O
Junction temperature
Input low voltage
Condition
Min Typ Max Unit
2.25 2.5
2.75
115
0.7
-
V
℃
V
0
25
CMOS
-
-
Vih
Input high voltage
1.7
-
V
Vt-
Schmitt trigger negative going CMOS
threshold voltage
0.7 1.0
-
V
Vt+
Schmitt trigger positive going
threshold voltage
-
1.5
1.7
V
Vol
Voh
Rpu
Rpd
Iin
Output low voltage
Output high voltage
Input pull-up resistance
Input pull-down resistance
Input leakage current
|Iol| = 2~16mA
|Ioh| = 2~16mA
-
-
-
75
75
±1
±1
0.4
-
190
190
10
V
V
KΩ
KΩ
μA
μA
1.85
40
40
-10
-10
Vin = VDD2 or 0
Ioz
Tri-state output leakage current
10
7.1.5 DC Characteristics of 3.3V I/O Pins
Symbol
VDD3
Temp
Vil
Parameter
Power supply of 3.3V I/O
Junction temperature
Input low voltage
Condition
3.3V I/O
Min Typ Max Unit
3.0 3.3
3.6
115
0.8
-
V
℃
V
0
25
LVTTL
-
-
Vih
Input high voltage
2.0
-
V
Vt-
Schmitt trigger negative going LVTTL
threshold voltage
0.8 1.1
-
V
Vt+
Schmitt trigger positive going
threshold voltage
-
1.6
2.0
V
Vol
Voh
Rpu
Rpd
Iin
Output low voltage
Output high voltage
Input pull-up resistance
Input pull-down resistance
Input leakage current
|Iol| = 2~16mA
|Ioh| = 2~16mA
-
2.4
40
40
-10
-10
-
-
75
75
±1
±1
0.4
-
190
190
10
V
V
KΩ
KΩ
μA
μA
Vin = VDD3 or 0
Ioz
Tri-state output leakage current
10
7.2 Power Consumption
Symbol
Description
Condition
Min
Typ Max Units
IVDDK2
Current consumption of VDDK/VDD2, Operating at Ethernet
-
48.3
-
mA
2.5V
1000Mbps full duplex
mode and USB High
speed mode
IVDD3
IAVDDK
IAVDD3
ΘJC
Current consumption of VDD3, 3.3V
Current consumption of AVDDK, 2.5V
Current consumption of AVDD3, 3.3V
Thermal resistance of junction to case
-
-
-
< 1
< 2
51.1
16.5
46
-
-
-
mA
mA
mA
°C/W
°C/W
ΘJA
Thermal resistance of junction to ambient Still air
27
ASIX ELECTRONICS CORPORATION
ASIX [ ASIX ELECTRONICS CORPORATION ]
