5.1 BUFFER TYPE DESCRIPTIONS
Table 1 - USB97C201 Buffer Type Descriptions
BUFFER
I
DESCRIPTION
Input
IS
Input with Schmitt trigger
Input/Output with 8 mA drive
Output with 8mA drive
Output with 12mA drive
Input/output with 20mA drive
Open drain….12mA sink
Output with 20mA drive
XTAL clock input
IO8
O8
O12
IO20
OD12
O20
ICLKx
OCLKx
I/O-U
XTAL clock output
Defined in USB specification
SMSC DS – USB97C201
Page 13
Rev. 03/25/2002
PRELIMINARY