13

AX88179A

USB 3.2 Gen1 to Gigabit Ethernet Controller

Copyright © 2020-2021 ASIX Electronics Corporation. All rights reserved.

5 Electrical Specifications

DC Characteristics

5.1.1

Recommended Operating Condition

Symbol

Parameter

Min

Typ

Max

Units

AVDD33_USB

3.3V Analog Power Input of USB.

2.97

3.3

3.63

V

AVDD33_SSUSB

3.3V Analog Power Input of SS USB.

2.97

3.3

3.63

V

AVDD11_SSUSB

1.1V Analog Power Input of SS USB.

1.045

1.1

1.155

V

DVDD11

1.1V Digital Power.

1.045

1.1

1.155

V

DVDD33

3.3V I/O Power.

2.97

3.3

3.63

V

AVDD33_BUCK

3.3V Analog Power Input of BUCK.

2.97

3.3

3.63

V

AVDD33_XTAL

3.3V Analog Power Input of Crystal.

2.97

3.3

3.63

V

AVDD33_GBE

3.3V Analog Power Input of Ethernet PHY.

2.97

3.3

3.63

V

AVDD11_GBE

1.1V Analog Power Input of Ethernet PHY.

1.045

1.1

1.155

V

Tj

operating junction temperature

0

25

125

℃

Ta

operating ambient temperature

0

-

70

℃

5.1.2

DC Characteristics of 3.3V I/O Pins

Symbol

Parameter

Conditions

Min

Typ

Max

Units

DVDD33 Power supply of 3.3V I/O.

3.3V I/O

2.97

3.3

3.63

V

Vil

Input low voltage.

LVTTL

-

-

0.8

V

Vih

Input high voltage.

2.0

-

-

V

Vt-

Schmitt trigger negative going threshold

voltage.

LVTTL

0.8

1.1

-

V

Vt+

Schmitt trigger positive going threshold

voltage

-

1.6

2.0

V

Vol

Output low voltage.

Iol = 4 ~ 8mA

-

-

0.4

V

Voh

Output high voltage.

Ioh = 4 ~ 8mA

DVDD33

-0.4

-

-

V

Vopu (1) Output pull-up voltage for 5V tolerant IO

With internal

pull-up resistor

DVDD33

– 0.9

-

-

V

Rpu

Input pull-up resistance.

40

75

190

KΩ

Rpd

Input pull-down resistance.

40

75

190

KΩ

Iin

Input leakage current.

Vin = 3.3 or 0V

-

±6

-

μA

Input leakage current with pull-up resistance.

Vin = 0 V

-

-45

-

μA

Input

leakage

current

with

pull-down

resistance.

Vin = DVDD33

-

45

-

μA

Note: This parameter indicates that the pull-up resistor for the I/O pins cannot reach DVDD33 DC level even

without DC loading current.