CY28435

更新时间： 2024-09-18 04:38:03

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		时钟发生器
页数	文件大小	规格书
23页	306K
描述
Clock Generator for Intel Grantsdale Chipset

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中文翻译

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数据手册

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CY28435 数据手册

CY28435

PRELIMINARY

Clock Generator for Intel^Grantsdale Chipset

• Dial-A-Frequency^

• Watchdog

• Two Independent Overclocking PLLs

Features

• Compliant to Intel^CK410

• Supports Intel Prescott and Tejas CPU

• Selectable CPU frequencies

• Differential CPU clock pairs

• 100-MHz differential SRC clocks

• 96-MHz differential dot clock

• 48-MHz USB clocks

• Low-voltage frequency select input

• I²C support with readback capabilities

• Ideal Lexmark Spread Spectrum profile for maximum

electromagnetic interference (EMI) reduction

• 3.3V power supply

• 56-pin SSOP and TSSOP packages

• 33-MHz PCI clock

• Dynamic Frequency Control

CPU

x 2

SRC

x 7

PCI

x 9

REF

x 2

DOT96

x 1

USB

x 2

Block Diagram

Pin Configuration

VDD_RE

VDD_PCI

VSS_PCI

DF2/PCI3

*FS_E/PCI4

PCI5

VSS_PCI

PCI2/DF1

PCI1/DF0

Xin

Xout

14.318MHz

Crystal

PCI0/SRESET#

REF1/**FS_C

REF0/**FS_D

VSS_REF

XIN

XOUT

VDD_REF

PLL Reference

IREF

VDD_CPU

CPUT

CPUC

VDD_PCI

**DF_EN/PCIF0

**SRESET_EN/PCIF1

CPU

Divider

PLL

VDD_CPU

PCIF2

VDD_48

USB48_0

VSS_48

DOT96T

SDATA

SCLK

FS_[E:A]

ITP_EN

VDD_SRC

VSS_CPU

CPUT0

CPUC0

VDD_CPU

CPUT1

CPUC1

IREF

SRCT

SRCC

SRC

Divider

PLL

DOT96C

VDD_SRC

*FS_B/USB48_1

**VTTPWRGD#/PD

**FS_A

VDD_SRC

SRCT1

SRCC1

VDD_SRC

SRCT2

SRCC2

VSSA

VDDA

SDATA

Divider

PLL

SRCT4_SATA

SRCC4_SATA

SRCT7

SRCC7

VDD_SRC

SRCT6

SRCC6

SRCT5

VDD_48Mhz

SRCT3

FIX

DOT96T

DOT96C

Divider

PLL

SRCC3

SRCT4_SATA

SRCC4_SATA

VDD_SRC

VDD_48

USB

SRCC5

VSS_SRC

VTTPWR_GD#/PD

VDD_PCI

PCI

* indicates internal pull-up

** indicates internal pull-down

DF_EN

VDD_PCI

Dynamic

DF[2:0]

PCIF

Frequency

Watchdog

Timer

I2C

SDATA

SCLK

SRESET#

Logic

Cypress Semiconductor Corporation

•

3901 North First Street

•

San Jose, CA 95134

•

408-943-2600

Document #: 38-07664 Rev. *B

Revised December 21, 2004

12 3 4 5 6 7...23

中文翻译

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