MEC1322 datasheet(393/456 Pages) MICROCHIP

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 2014 - 2015 Microchip Technology Inc.

DS00001719D-page 393

MEC1322

PCI_PIO Type Buffer

All PCI_PIO Buffers

Pull-up current

IPU

0.611.5

Internal PU is selected via the GPIO

Pin Control Register.

PCI_CLK Type Buffer

PCI_IO Type Buffers

PCI_OD Type Buffer

PCI_ICLK

PCI_IO

PCI_O

PCI_I

PCI_OD

See PCI Local Bus Specification Rev.

2.1

These buffers are not not 5V tolerant

buffers and they are not backdrive pro-

tected.

PECI Type Buffer

VREF Buffer

Connects to CPU Voltage pin

(Processor dependent)

PECI Bus Voltage

VBUS

0.95

1.26

Input current

IDC

100

µA

Input Low Current

ILEAK

-10

+10

µA

This buffer is not 5V tolerant

This buffer is not backdrive protected.

PECI_I Buffer

All input and output voltages are a

function of VREF buffer input.

Input voltage range

VIn

-0.3

VREF +

0.3

Low Input Level

VIL

0.275

VREF

High Input Level

VIH

0.725

VREF

This buffer is not 5V tolerant

This buffer is not backdrive protected.

PECI_IO

All input and output voltages are a

function of VREF buffer input.

See PECI Specification.

Input voltage range

VIn

-0.3

VREF +

0.3

Hysteresis

VHYS

0.1

VREF

0.2

VREF

Low Input Level

VIL

0.275

VREF

High Input Level

VIH

0.725

VREF

Low Output Level

VOL

0.25

VREF

0.5mA < IOL < 1mA

High Output Level

VOH

0.75

VREF

VIOH = -6mA

Tolerance

3.63

This buffer is not 5V tolerant

This buffer is not backdrive protected.

TABLE 37-4:

DC ELECTRICAL CHARACTERISTICS (CONTINUED)

Parameter

Symbol

MIN

TYP

MAX

Units

Comments

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