LAN9730 datasheet(26/222 Pages) MICROCHIP

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LAN9730/LAN9730i

DS00001946A-page 26

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2.2

Buffer Types

TABLE 2-9:

BUFFER TYPES

Buffer Type

Description

Schmitt-triggered input

Output with 8 mA sink and 8 mA source

OD8

Open-drain output with 8 mA sink

O12

Output with 12 mA sink and 12 mA source

OD12

Open-drain output with 12 mA sink

HSIC

High-Speed Inter-Chip (HSIC) USB Electrical Specification, Version 1.0 compliant input/out-

put

50 µA (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.

50 µA (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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