Справочник Пользователя для SMSC LAN9500i

Hi-Speed USB 2.0 to 10/100 Ethernet Controller

SMSC LAN9500/LAN9500i

19

Revision 1.7 (10-02-08)

 

IS

Schmitt-triggered Input

IS_5V

5V Tolerant Schmitt-triggered Input

O8

Output with 8mA sink and 8mA source

OD8

Open-drain output with 8mA sink

O12

Output with 12mA sink and 12mA source

OD12

Open-drain output with 12mA sink

PU

50uA (typical) internal pull-up. Unless otherwise noted in the pin description, internal pull-
ups are always enabled. 

Internal pull-up resistors prevent unconnected inputs from floating. Do not rely on 
internal resistors to drive signals external to the LAN9500/LAN9500i. When 
connected to a load that must be pulled high, an external resistor must be added.

PD

50uA (typical) internal pull-down. Unless otherwise noted in the pin description, internal 
pull-downs are always enabled.

Internal pull-down resistors prevent unconnected inputs from floating. Do not rely 
on internal resistors to drive signals external to the LAN9500/LAN9500i. When 
connected to a load that must be pulled low, an external resistor must be added.

AI

Analog input

AIO

Analog bi-directional

ICLK

Crystal oscillator input pin

OCLK

Crystal oscillator output pin

P

Power pin