AX6800X datasheet(40/57 Pages) ASIX

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AX6800x

2/4-Port USB KVM Switch SoC

4.1.4 DC Characteristics of 3.3V with 5V Tolerant I/O Pins

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VDDIO Power supply of 3.3V I/O.

3.3V I/O

2.97

3.3

3.63

Vil

Input low voltage.

LVTTL

0.8

Vih

Input high voltage.

2.0

Switching threshold.

0.85

0.97

1.09

Vt-

Schmitt trigger negative going threshold

voltage.

LVTTL

1.0

1.05

1.13

Vt+

Schmitt trigger positive going threshold

voltage

1.85

2.02

2.22

Vol

Output low voltage.

|Iol| = 8.65mA(Typ)

0.4

Voh

Output high voltage.

|Ioh| =

11.2mA(Typ)

2.4

Vopu

(1)

Output pull-up voltage for 5V tolerant IO

With internal

pull-up resistor

VDDIO

– 0.9

Iol

Output low current.

Vol = 0.4V

5.32

8.65

Ioh

Output high current.

Voh = 2.4V

5.52

11.2

18.9

Rpu

Input pull-up resistance.

59.2

73.4

94.9

KΩ

Rpd

Input pull-down resistance.

54.4

74.3

120

KΩ

Iin

Input leakage current.

Vin = 5 or 0V

μA

Input leakage current with pull-up resistance. Vin = 0 V

13.4

22.1

34.9

μA

Input

leakage

current

with

pull-down

resistance.

Vin = VDDIO

9.98

21.1

39.2

μA

Ioz

Tri-state output leakage current.

Vin = 5.5V or 0

μA

Note:

This parameter indicates that the pull-up resistor for the 5V tolerant I/O pins cannot reach VDDIO DC level

even without DC loading current.

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