Datasheet

Hi-Speed USB 2.0 to 10/100/1000 Ethernet Controller
Datasheet
Revision 1.0 (11-01-10) 18 SMSC LAN7500/LAN7500i
DATASHEET
2.2 Buffer Types
Table 2.9 Buffer Types
BUFFER TYPE DESCRIPTION
VIS Variable voltage Schmitt-triggered Input
IS_5V 5V Tolerant Schmitt-triggered Input
VO6 Variable voltage output with 6mA sink and 6mA source
VOD6 Variable voltage open-drain output with 6mA sink
VO8 Variable voltage output with 8mA sink and 8mA source
VOD8 Variable voltage open-drain output with 8mA sink
PU 50uA (typical) internal pull-up. Unless otherwise noted in the pin description, internal pull-
ups are always enabled.
Note: Internal pull-up resistors prevent unconnected inputs from floating. Do not rely on
internal resistors to drive signals external to LAN7500/LAN7500i. 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.
Note: Internal pull-down resistors prevent unconnected inputs from floating. Do not rely
on internal resistors to drive signals external to LAN7500/LAN7500i. 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