USB 2.0 7-Port Hub

Data Sheet Rev. 1.01

OVCJ[2]

62

―

I-PU

Over-current Detect for 2nd Downstream Facing Port, active low. 1

LED[7]

63

46

O/

I-PU

LED Control for the 7th Downstream Facing Port Status, and

Number of Ports Configuration bit 0.

3

LED[6]

64

47

O/

I-PU

LED Control for the 6th Downstream Facing Port Status, and

Number of Ports Configuration bit 1.

3

Note

1. Pins OVCJ[7:2] are equipped with optional internal pull-up resisters. When certain OVCJ pin is

not required by currently configured over-current protection mode, its internal pull-up resister

will be applied so that pin can be left as unconnected on the board. Otherwise, when certain

OVCJ pin is used by currently configured over-current protection mode, its pull-up resister will

be removed so that it could be used to monitor either 3.3V or 5V input from external application

circuit.

2. During power up configuration stage, pins PWRJ[7:6] are used as input with internal pull-up

resisters. Once passed that stage, they will be configured as open drain output.

3. During power up configuration stage, pins LED[4:2] and LED[7:6] are used as input with

internal pull-up resister. Once passed that stage, they will be configured as CMOS output.

4. During power up configuration stage, pin LED[1] is used as CMOS tristate I/O to work with the

external EEPROM as serial clock. Once passed that stage, it is used as CMOS output.

Type Abbreviation –

I :

Schmitt Trigger Input, 5V-Tolerant;

I-PU :

Input with Controllable Internal Pull-Up, 5V-Tolerant when pull-up resisters is disabled;

IO-PU : CMOS 3-state Output with Input and Internal Pull-Up;

OD :

Open Drain Output;

O :

CMOS Output;

A :

Analog I/O;

P :

Power/Ground;

OSC :

Crystal Oscillator with internal bias resister and load capacitor;

UTU :

USB High Speed and Full Speed Transceiver;

UTD :

USB High Speed, Full Speed, and Low Speed Transceiver.

Jul. 16, 2009

Subject to Change Without Notice

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