LAN9250 datasheet(6/421 Pages) MICROCHIP

6 / 421 page

LAN9250

DS00001913A-page 6

 2015 Microchip Technology Inc.

1.2

Buffer Types

TABLE 1-2:

BUFFER TYPES

Buffer Type

Description

Schmitt-triggered input

VIS

Variable voltage Schmitt-triggered input

VO8

Variable voltage output with 8 mA sink and 8 mA source

VOD8

Variable voltage open-drain output with 8 mA sink

VO12

Variable voltage output with 12 mA sink and 12 mA source

VOD12

Variable voltage open-drain output with 12 mA sink

VOS12

Variable voltage open-source output with 12 mA source

VO16

Variable voltage output with 16 mA sink and 16 mA source

50 µA (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 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.

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 bidirectional

ICLK

Crystal oscillator input pin

OCLK

Crystal oscillator output pin

ILVPECL

Low voltage PECL input pin

OLVPECL

Low voltage PECL output pin

Power pin

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