Ultra Fast USB 2.0 Memory Stick Flash Media Controller

Datasheet

5.2Buffer Type Descriptions

 

Table 5.3 USB2242/USB2242i Buffer Type Descriptions

 

 

BUFFER

DESCRIPTION

 

 

I

Input.

 

 

IPU

Input with internal weak pull-up resistor.

 

 

IS

Input with Schmitt trigger.

 

 

I/O12

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

 

 

I/O200

Input/Output buffer 12mA with FET disabled, 100/200mA source only when the FET is

 

enabled.

 

 

I/O12PD

Input/Output buffer with 12mA sink and 12mA source, with an internal weak pull-down

 

resistor.

 

 

O12

Output buffer with 12mA source.

 

 

ICLKx

XTAL clock input.

 

 

OCLKx

XTAL clock output.

 

 

I/O-U

Analog Input/Output Defined in USB specification.

 

 

I-R

RBIAS.

 

 

SMSC USB2242/USB2242i

13

Revision 1.0 (05-27-08)

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