
ASIX ELECTRONICS CORPORATION
25
AX88178 L
USB to 10/100/1000 Gigabit Ethernet/HomePNA Controller
7.0 Electrical Specifications
7.1 DC Characteristics
7.1.1 Absolute Maximum Ratings
Symbol
VDDK
Digital core power supply
Parameter
Rating
Unit
V
- 0.3 to VDDK + 0.3
VDD2
VDD3
AVDDK
AVDD3
V
IN2
Power supply of 2.5V I/O
Power supply of 3.3V I/O
Analog core power supply
Power supply of analog I/O
Input voltage of 2.5V I/O
Input voltage of 2.5V I/O with 3.3V tolerant
Input voltage of 3.3V I/O
Input voltage of 3.3V I/O with 5V tolerant
- 0.3 to VDD2 + 0.3
- 0.5 to VDD3 + 0.5
- 0.3 to AVDDK + 0.3
- 0.5 to AVDD3 + 0.5
- 0.3 to VDD2 + 0.3
- 0.3 to 3.9
- 0.3 to VDD3 + 0.3
- 0.3 to 5.5
V
V
V
V
V
V
V
V
V
IN3
T
STG
Storage temperature
- 40 to 150
℃
Note: Permanent device damage may occur if absolute maximum ratings are exceeded. Functional operation should be
restricted in the optional sections of this datasheet. Exposure to absolute maximum rating condition for extended periods
may affect device reliability.
7.1.2 Recommended Operating Condition
Symbol
Parameter
VDDK
Digital core power supply
VDD2
Power supply of 2.5V I/O
VDD3
Power supply of 3.3V I/O
AVDDK
Analog core power supply
AVDD3
Power supply of analog I/O
Input voltage of 2.5 V I/O
V
IN2
Input voltage of 2.5 V I/O with 3.3 V
tolerance
Input voltage of 3.3 V I/O
V
IN3
Min
2.25
2.25
3.0
2.25
3.0
0
0
Typ
2.5
2.5
3.3
2.5
3.3
2.5
2.5
Max
2.75
2.75
3.6
2.75
3.6
2.75
3.6
Unit
V
V
V
V
V
V
V
0
3.3
3.6
V
Input voltage of 3.3 V I/O with 5 V
tolerance
Commercial junction operating
temperature
0
3.3
5.25
V
T
j
0
-
115
℃
7.1.3 Leakage Current and Capacitance
Symbol
Parameter
I
IN
Input current
I
OZ
Tri-state leakage current
C
IN
Input capacitance
C
OUT
Output capacitance
Condition
Min
-10
-10
-
-
Typ
±
1
±
1
3.1
3.1
Max
10
10
-
-
Unit
μ
A
μ
A
pF
pF
No pull-up or pull-down
C
BID
Bi-directional buffer capacitance
-
3.1
-
pF