USB 2.0 Hi-Speed 2-Port Hub Controller

Datasheet

3.2Buffer Type Descriptions

 

Table 3.4 USB2512A Buffer Type Descriptions

 

 

BUFFER

DESCRIPTION

 

 

I

Input.

 

 

IPD

Input with internal weak pull-down resistor.

 

 

IPU

Input with internal weak pull-up resistor.

 

 

IS

Input with Schmitt trigger.

 

 

O12

Output 12mA.

 

 

OD12

Open drain with 12mA sink.

 

 

I/O12

Input/Output buffer with 12mA sink and 12mA source.

 

 

I/OSD12

Open drain with Schmitt trigger and 12mA sink. Must meet I2C-Bus Specification

 

Version 2.1 requirements.

 

 

ICLKx

XTAL clock input.

 

 

OCLKx

XTAL clock output.

 

 

I-R

RBIAS.

 

 

I/O-U

Analog Input/Output Defined in USB specification.

 

 

AIO

Analog Input/Output.

 

 

Revision 1.96 (07-11-08)

12

SMSC USB2512A

 

DATASHEET