ASIX ELECTRONICS CORPORATION

26

AX88178 L

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

Parameter

Condition

Min

Typ

Max

Unit

VDD2

Power supply of 2.5V I/O

2.25

2.5

2.75

V

Temp

Junction temperature

0

25

115

℃

Vil

Input low voltage

-

-

0.7

V

Vih

Input high voltage

CMOS

1.7

-

-

V

Vt-

Schmitt

trigger

negative

going

threshold voltage

0.7

1.0

-

V

Vt+

Schmitt

trigger

positive

going

threshold voltage

CMOS

-

1.5

1.7

V

Vol

Output low voltage

|Iol| = 2~16mA

-

-

0.4

V

Voh

Output high voltage

|Ioh| = 2~16mA

1.85

-

-

V

Rpu

Input pull-up resistance

40

75

190

KΩ

Rpd

Input pull-down resistance

40

75

190

KΩ

Iin

Input leakage current

Vin = VDD2 or 0

-10

±1

10

μA

Ioz

Tri-state output leakage current

-10

±1

10

μA

7.1.5

DC Characteristics of 3.3V I/O Pins

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VDD3

Power supply of 3.3V I/O

3.3V I/O

3.0

3.3

3.6

V

Temp

Junction temperature

0

25

115

℃

Vil

Input low voltage

-

-

0.8

V

Vih

Input high voltage

LVTTL

2.0

-

-

V

Vt-

Schmitt

trigger

negative

going

threshold voltage

0.8

1.1

-

V

Vt+

Schmitt

trigger

positive

going

threshold voltage

LVTTL

-

1.6

2.0

V

Vol

Output low voltage

|Iol| = 2~16mA

-

-

0.4

V

Voh

Output high voltage

|Ioh| = 2~16mA

2.4

-

-

V

Rpu

Input pull-up resistance

40

75

190

KΩ

Rpd

Input pull-down resistance

40

75

190

KΩ

Iin

Input leakage current

Vin = VDD3 or 0

-10

±1

10

μA

Ioz

Tri-state output leakage current

-10

±1

10

μA

7.2 Power Consumption

Symbol

Description

Condition

Min

Typ

Max Units

Current consumption of VDDK/VDD2,

2.5V

-

48.3

-

mA

Current consumption of VDD3, 3.3V

-

< 1

-

mA

Current consumption of AVDDK, 2.5V

-

< 2

-

mA

Current consumption of AVDD3, 3.3V

Operating at Ethernet

1000Mbps full duplex

mode and USB High

speed mode

-

51.1

-

mA