ICS950202 datasheet(1/19 Pages) ICST

部件名	ICS950202

功能描述	Programmable Timing Control HubTM for P4TM

PDF	19 Pages

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制造商	ICST [Integrated Circuit Systems]

网页	http://www.icst.com

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1 / 19 page

Integrated

Circuit

Systems, Inc.

ICS950202

0461L—05/28/03

Block Diagram

Pin Configuration

Recommended Application:

CK-408 clock for Intel® 845 chipset.

Output Features:

•

3 - Pairs of differential CPU clocks @ 3.3V

•

3 - 3V66 @ 3.3V

•

9 - PCI @ 3.3V

•

2 - 48MHz @ 3.3V fixed

•

1 - VCH/3V66 @ 3.3V, 48MHz or 66MHz

•

1 - REF @ 3.3V, 14.318MHz

Features/Benefits:

•

Programmable output frequency.

•

Programmable output divider ratios.

•

Programmable output rise/fall time.

•

Programmable output skew.

•

Programmable spread percentage for EMI control.

•

Watchdog timer technology to reset system

if system malfunctions.

•

Programmable watch dog safe frequency.

•

Support I

2C Index read/write and block read/write

operations.

•

Uses external 14.318MHz crystal.

Key Specifications:

•

CPU Output Jitter <150ps

•

3V66 Output Jitter <250ps

•

CPU Output Skew <100ps

Programmable Timing Control HubTM for P4TM

1. These outputs have 2X drive strength.

* Internal Pull-up resistor of 120K to VDD

** these inputs have 120K internal pull-down

to GND

48-Pin 300-mil SSOP

Power Groups

VDDA = Analog Core PLL

VDDREF = REF, Xtal

AVDD48 = 48MHz

4

S

F3

S

F2

S

F1

S

F0

S

F

K

L

C

U

P

C

z

H

M

6

V

3

z

H

M

K

L

C

I

C

P

z

H

M

000

0

1

0

.

0

17

6

.

6

63

3

.

3

10

0

1

3

.

3

17

6

.

6

63

3

.

3

111

1

0

7

6

.

6

67

6

.

6

64

3

.

3

111

1

0

.

0

27

6

.

6

63

3

.

3

Frequency Table

For additional frequency selections please refer to Byte 0.

VDDREF

X1

X2

GND

**FS0/PCICLK7

**FS1/PCICLK8

VDDPCI

GND

*WDEN/PCICLK0

PCICLK1

PCICLK2

PCICLK3

VDDPCI

GND

PCICLK4

PCICLK5

PCICLK6

VDD3V66

GND

3V66_1

3V66_2

3V66_3

#RESET

VDDA

1

REF/FS2**

CPUCLKT0

CPUCLKC0

VDDCPU

CPUCLKT1

CPUCLKC1

GND

VDDCPU

CPUCLKT2

CPUCLKC2

MULTISEL0*

I REF

GND

48MHz_USB/FS3**

48MHz_DOT

AVDD48

GND

3V66_0/VCH_CLK/FS4**

VDD3V66

GND

SCLK

SDATA

Vtt_PWRGD/PD#

GND

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

类似零件编号 - ICS950202

制造商	部件名	数据表	功能描述
Renesas Technology Corp	ICS950202	416Kb / 21P	Programmable Timing Control HubTM for P4TM 2019
Renesas Technology Corp	ICS950202YFLFT	416Kb / 21P	Programmable Timing Control HubTM for P4TM 2019

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