LAN9500AI datasheet(23/213 Pages) MICROCHIP

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DS00001875A-page 23

LAN950x

3.2

Buffer Types

TABLE 3-10:

BUFFER TYPES

Buffer Type

Description

Schmitt-triggered Input

IS_5V

5V Tolerant Schmitt-triggered Input

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

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

AIO

Analog bi-directional

ICLK

Crystal oscillator input pin

OCLK

Crystal oscillator output pin

Power pin

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