Datasheet > ICS932S202

ICS932S202

更新时间： 2024-09-07 21:53:47

品牌	Logo	应用领域
矽成 - ICSI		/
页数	文件大小	规格书
14页	106K
描述
Frequency Timing Generator for Differential PIIIType Dual-CPU Systems

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中文翻译

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数据手册

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ICS932S202 数据手册

ICS932S202

Integrated

Circuit

Systems, Inc.

Frequency Timing Generator for Differential PIII Type

Dual-CPU Systems

RecommendedApplication:

KeySpecifications:

Serverwork HE-T, HE-SL & LE-T Chipsets

•

CPU Output Jitter: <150ps

IOAPIC Output Jitter: <500ps

48MHz, 3V66, PCI Output Jitter: <500ps

Ref Output Jitter. <1000ps

OutputFeatures:

•

2 - CPUs @ 2.5V, up to 180MHz

2 - CPU chipset @ 2.5V, up to 180MHz

3 - IOAPIC @ 2.5V

CPU Output Skew: <175ps

IOAPIC Output Skew <250ps

PCI Output Skew: <500ps

3 - 3V66MHz @ 3.3V

11 - PCIs @ 3.3V

1 - 48MHz, @ 3.3V fixed

3V66 Output Skew <250ps

•

1 - 24/48MHz, @ 3.3V

2 - REF @ 3.3V

CPU to 3V66 Output Offset: 0.8 - 1.8ns (typ =

1.3ns)

Features:

•

CPU to PCI Output Offset: 0.0 - 1.5ns (typ =

0.9ns)

•

Up to 180MHz frequency support

Support power management:Power down Mode

from I²C programming.

CPU to IOAPIC Output Offset: 1.5 - 4.0ns (typ =

2.0ns)

•

Spread spectrum for EMI control

± 0.25% center spread).

•

Uses external 14.318MHz crystal

5 - FS pins for frequency select

Block Diagram

Pin Configuration

GNDREF

REF0

*SEL24_48#/REF1

VDDREF

VDDLAPIC

IOAPIC0

IOAPIC1

GNDLAPIC

IOAPIC2

VDDLCPU

CPUCLK0

GNDLCPU

CPUCLK1

VDDLCPU

CPU_CSCLK0

CPU_CSCLK1

GNDLCPU

VDD66

3V66_0

3V66_1

3V66_2

GND66

SDATA

SCLK

VDD48

PLL2

48MHz

24_48MHz

/ 2

GNDPCI

XTAL

OSC

REF (1:0)

*FS0/PCICLK0

*FS1/PCICLK1

VDDPCI

*FS2/PCICLK2

*FS3/PCICLK3

GNDPCI

PLL1

Spread

Spectrum

CPU

DIVDER

CPUCLK (1:0)

CPU_CSCLK (1:0)

PCICLK4

PCICLK5

VDDPCI

PCICLK6

PCICLK7

GNDPCI

PCICLK8

PCICLK9

PCICLK10

VDDPCI

IOAPIC

DIVDER

IOAPIC (2:0)

SEL24_48#

Control

Logic

PCI

DIVDER

PCICLK (10:0)

SDATA

SCLK

FS (4:0)

PD#

Config.

Reg.

48MHz/FS4*

24_48MHz

GND48

3V66

DIVDER

3V66 (2:0)

PD#

48-pin SSOP

*120Kohmpull-uptoVDDonindicatedinputs.

0600A—08/04/03

12 3 4 5 6 7...14

中文翻译

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