SMSC USB2512Ai ユーザーズマニュアル

Industrial Temperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller

Revision 1.97 (08-11-08)

12

SMSC USB2512Ai

I/O

Input/Output.

IPD

Input with internal weak pull-down resistor.

IPU

Input with internal weak pull-up resistor.

IS

Input with Schmitt trigger.

O12

Output 12mA.

I/O12

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

I/OSD12

Open drain with Schmitt trigger and 12mA sink. Must meet I

2

C-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.