CY28443 datasheet(1/25 Pages) CYPRESS

Part #	CY28443

Description	Clock Generator for Intel짰 Calistoga Chipset

PDF	25 Pages

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Manufacturer	CYPRESS [Cypress Semiconductor]

Direct Link	http://www.cypress.com

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PRELIMINARY

Clock Generator for Intel® Calistoga Chipset

CY28443

Cypress Semiconductor Corporation

•

198 Champion Court

•

San Jose

, CA 95134-1709

•

408-943-2600

Document #: 38-07716 Rev *C

Revised October 17, 2005

Features

• Compliant to Intel® CK410M

• Selectable CPU frequencies

• Differential CPU clock pairs

• 100-MHz differential SRC clocks

• 96-MHz differential dot clock

• 27-MHz Spread and Non-spread video clock

• 48-MHz USB clocks

• SRC clocks independently stoppable through

CLKREQ#[A:B]

• 96/100-MHz Spreadable differential video clock

• 33-MHz PCI clock

• Buffered Reference Clock 14.318-MHz

• 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/TSSOP packages

CPU

SRC

PCI

REF

DOT96

USB_48M

LCD

27M

x2 / x3

x5/6/7

x6

x 2

x 1

x1

x2

VDD

1

56

PCI2/SEL_CLKREQ

VSS

2

55

PCI_STP#

PCI3

3

54

CPU_STP#

PCI4

4

53

REF0/FSC

PCI5/FCTSEL1

5

52

REF1/FCTSEL0

VSS

6

51

VSS

VDD

7

50

XIN

ITP_SEL/PCIF0

8

49

XOUT

PCIF1

9

48

VDD

VTT_PWRGD#/PD

10

47

SDATA

VDD

11

46

SCLK

FSA /48M

12

45

VSS

13

44

CPUT0

DOT96T/27M non Spread

14

43

CPUC0

DOT96C/27M Spread

15

42

VDD

FSB

16

41

CPUT1

SRCT0/100MT_SST

17

40

CPUC1

SRCC0/100MC_SST

18

39

IREF

SRCT2

19

38

VSSA

SRCC2

20

37

VDDA

VDD

21

36

SRCT11/CPUT2_itp

SRCT3

22

35

SRCC11/CPUC2_itp

SRCC3

23

34

VDD

SRCT4

24

33

SRCT9/CLKREQA

SRCC4

25

32

SRCC9/CLKREQB

SRCT5 _SATA

26

31

SRCT8

SRCC5_SATA

27

30

SRCC8

VDD

28

29

VSS

Pin Configuration

Block Diagram

IREF

VDD

REF[0:1]

VDD

CPUT2_ITP/SRCT11

CPUC2_ITP/SRCC11

VDD

Divider

14.318MHz

Crystal

CPU

PLL

LVDS

PLL

Fixed

PLL

PLLReference

XIN

XOUT

PCI_STP#

FS[C:A]

VTT_PWRGD#/PD

CPUT[0:1]

CPUC[0:1]

SRCT([2:5],[8:9])

VDD

PCI[3:5]

VDD

PCIF[0:1]

VDD_PCI

CPU_STP#

CLKREQ[A:B]#

VDD

FCTSEL1

SEL_CLKREQ

ITP_SEL

SRCC([2:5],[8:9])

48M

VDD48

SRCT0/100MT_SST

SRCC0/100MC_SST

I2C

Logic

SDATA

SCLK

27MNon-spread

VDD48

Divider

27M

PLL

27MSpread

VDD48

DOT96T

DOT96C

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