LAN9500 Datasheet, PDF (23/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode

LAN950x
3.2 Buffer Types
TABLE 3-10: BUFFER TYPES
Buffer Type
Description
IS
IS_5V
O8
OD8
O12
OD12
PU
PD
AI
AIO
ICLK
OCLK
P
Schmitt-triggered Input
5V Tolerant Schmitt-triggered Input
Output with 8mA sink and 8mA source
Open-drain output with 8mA sink
Output with 12mA sink and 12mA source
Open-drain output with 12mA sink
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 the device. When connected to a load
that must be pulled high, an external resistor must be added.
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 the device. When connected to a
load that must be pulled low, an external resistor must be added.
Analog input
Analog bi-directional
Crystal oscillator input pin
Crystal oscillator output pin
Power pin
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DS00001875A-page 23