MEC1322 datasheet(390/456 Pages) MICROCHIP

390 / 456 page

MEC1322

DS00001719D-page 390

 2014 - 2015 Microchip Technology Inc.

37.2.2

AC ELECTRICAL SPECIFICATIONS

The clock rise and fall times use the standard input thresholds of 0.8V and 2.0V unless otherwise specified and the

capacitive values listed in Section 37.2.2, "AC Electrical Specifications," on page 390.

37.2.3

CAPACITIVE LOADING SPECIFICATIONS

The following table defines the maximum capacitive load validated for the buffer characteristics listed in Table 37-4, “DC

Electrical Characteristics,” on page 391.

CAPACITANCE TA = 25°C; fc = 1MHz; Vcc = 3.3 VDC

Note 37-2

The PCI buffers are designed to meet the defined PCI Local Bus Specification, Rev. 2.1, electrical

requirements.

Note 37-3

All input buffers can be characterized by this capacitance unless otherwise specified.

Note 37-4

All output buffers can be characterized by this capacitance unless otherwise specified.

Note:

All output pins, except pin under test, tied to AC ground.

Parameter

Symbol

Limits

Unit

Notes

MIN

TYP

MAX

Input Capacitance of PCI_I and

PCI_IO pins

CIN

Note 37-2

Input Capacitance of PCI_CLK pin

CIN

Note 37-2

Output Load Capacitance supported

by PCI_IO, PCI_O, and PCI_OD

COUT

Note 37-2

SUSCLK Input Capacitance

CIN

Input Capacitance of PECI_I and

PECI_IO

CIN

Output Load Capacitance supported

by PECI_IO and OD_PH

COUT

Input Capacitance (all other input

pins)

CIN

Note 37-3

Output Capacitance (all other output

pins)

COUT

Note 37-4

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