ICS9148F-82 데이터 시트보기 (PDF) - Integrated Circuit Systems

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ICS9148F-82

Frequency Generator & Integrated Buffers for PENTIUM/Pro™

Integrated Circuit Systems 

Mode Pin - Power Management Input Control

MODE, Pin 25

(Latched Input)

0

1

Pin 17

CPU_STOP#

(INPUT)

SDRAM 11

(OUTPUT)

Pin 18

PCI_STOP#

(INPUT)

SDRAM 10

(OUTPUT)

Pin 20

AGP_STOP#

(INPUT)

SDRAM 9

(OUTPUT)

ICS9148 - 82

Pin 21

PD#

(INPUT)

SDRAM 8

(OUTPUT)

Power Management Functionality

AGP_STOP# CPU_STOP# PCI_STOP#

1

0

1

1

1

1

1

1

0

0

1

1

AGP,

CPUCLK

Outputs

Stopped Low

PCICLK

(0:5)

Running

PCICLK_F,

REF, 48MHz

and SDRAM

Running

Running

Running

Running

Running Stopped Low Running

Running

Running

Running

Crystal

OSC

Running

Running

Running

Running

VCO AGP(1:2)

Running Running

Running Running

Running Running

Running Stopped Low

CPU 3.3#_2.5V Buffer selector for CPUCLK drivers.

CPU3.3#_2.5

Input level

(Latched Data)

1

0

Buffer Selected for

operation at:

2.5V VDD

3.3V VDD

Functionality

VDD1, 2, 3, 4 = 3.3V±5%, VDDL = 2.5V ±5% or 3.3 ±5%, TA= 0 to 70°C

Crystal (X1, X2) = 14.31818MHz

FS2

FS1

FS0

CPU, SDRAM

(MHz)

1

1

1

100

1

1

0

95.25

1

0

1

83.3

1

0

0

75

0

1

1

75

0

1

0

68.5

0

0

1

66.8

0

0

0

90

PCI

(MHz)

33.3

31.75

33.3

30

37.5

34.25

33.4

30

AGP

(MHz)

66.6

63.5

66.6

60

75

68.5

66.8

60

REF, IOAPIC

(MHz)

14.318

14.318

14.318

14.318

14.318

14.318

14.318

14.318

3

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