ICS952302 datasheet(1/15 Pages) ICST

部件名	ICS952302

功能描述	Frequency Generator for TransmetaTM

PDF	15 Pages

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制造商	ICST [Integrated Circuit Systems]

网页	http://www.icst.com

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1 / 15 page

Integrated

Circuit

Systems, Inc.

ICS952302

0957B—10/05/04

Frequency Generator for Transmeta

TM EfficeonTM

Pin Configuration

Recommended Application:

Transmeta Efficion, ATi M6

Output Features:

•

3 - CPUs @ 3.3V including 1 free running

CPUCLK_F

•

7 - PCI @ 3.3V, including 4 free running PCICLK_F

•

1 - 27MHz clock @ 3.3V

•

2 - 48MHz clocks @ 3.3V

•

2 - REF clocks @3.3V

Key Specifications:

•

CPU output jitter: < 250ps

•

PCI output skew: < 250ps

•

CPUT - PCI output skew: 1-3ns

•

27MHz Accuracy < 50ppm

•

48MHz Accuracy < 50ppm

Functionality

Features:

•

Support I2C Index read/write and block read/write

operations.

•

Uses external 14.318MHz referience input or XTAL.

•

Full Load Power consumption reduced >10%

compared to reference device

•

Power management via SMBus

00

0

+/-0.3

00

1

+/-0.6

01

0

+/-0.25

01

1

+/-0.45

10

0

-0.60%

10

1

-1.20%

11

0

-0.50%

11

1

-0.90%

DOWN

Spread

%

Byte 4b7

Byte 4b6

Byte 4b5

CENTER

VDDREF

148 REF1

REF0

247 VDDCPU

GNDREF

346 N/C

X1

445 CPUCLK0

X2

544 GNDCPU

VDDPCI

643 CPUCLK1

PCICLK_F0

742 CPUCLK_F

PCICLK_F1

841 CPU_STOP#

GNDPCI

940 GND

PCICLK0

10

39 N/C

PCICLK1

11

38 OE*

PCICLK_F2

12

37 N/C

PCICLK_F3

13

36 VDD

VDDPCI

14

35 N/C

PCICLK2

15

34 VDD27

GNDPCI

16

33 GND

N/C

17

32 27MHZ

N/C

18

31 N/C

VDDCOR

19

30 N/C

PCI_STOP#

20

29 N/C

**PD#

21

28 GND48

GND48

22

27 VDD48

SDATA

23

26 48MHZ_1

SCLK

24

25 48MHZ_0

48-TSSOP

* Internal Pull-Up Resistor

**No Diode Clamp to VDD

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