MEC1632 datasheet(10/636 Pages) MICROCHIP

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MEC1632

DS00001592B-page 10

 2012-2018 Microchip Technology Inc.

3.0

MEC1632 PIN CONFIGURATION

3.1

Description

The MEC1632 Pin Configuration chapter includes a Pin List, General System/Layout Issues, Pin Description, Pin Mul-

tiplexing, Notes for Tables in this Chapter, Strapping Options and Package Outline.

3.2

Terminology and Symbols for Pins/Buffers

Note 3-1

See the “PCI Local Bus Specification,” Revision 2.1, Section 4.2.2.

Note 3-2

See the “PCI Local Bus Specification,” Revision 2.1, Section 4.2.2 and 4.2.3.

Term

Definition

The ‘#’ sign at the end of a signal name indicates that this is an active-low signal

The lowercase ‘n preceding a signal name indicates that this is an active-low

signal

PWR

Power

IDigital Input

Input with Schmitt Trigger

I_AN

Analog Input

Push-Pull Output

Open Drain Output

Bi-directional pin

IOD

Bi-directional pin with Open Drain Output

PCI_I

Input. These pins meet the PCI 3.3V AC and DC Characteristics. (Note 3-1

PCI_O

Output. These pins meet the PCI 3.3V AC and DC Characteristics. (Note 3-1)

PCI_OD

Open Drain Output. These pins meet the PCI 3.3V AC and DC Characteristics.

(Note 3-1)

PCI_IO

Input/Output These pins meet the PCI 3.3V AC and DC Characteristics. (Note 3-

PCI_ICLK

Clock Input. These pins meet the PCI 3.3V AC and DC Characteristics and

timing. (Note 3-2)

SB-TSI

Input/Output (Open Drain), These pins are at the SB-TSI VREF level. See , .

IO_PECI

PECI Input/Output. These pins are at the PECI VREF level. See Section 45.0,

"Electrical Specifications," on page 602.

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