Datasheet > ICS951416AFLFT

ICS951416AFLFT

更新时间： 2023-01-02 15:37:37

品牌	Logo	应用领域
艾迪悌 - IDT		光电二极管
页数	文件大小	规格书
27页	248K
描述
Processor Specific Clock Generator, 220MHz, PDSO56, 0.300 INCH, 0.025 INCH PITCH, GREEN, MO-118, SSOP-56

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ICS951416AFLFT 数据手册

ICS951416

Integrated

Circuit

Systems, Inc.

System Clock Chip for ATI RS480

Recommended Application:

ATI RS480 systems using AMD K8 processors

Pin Configuration

X1 1

56 VDDREF

X2 2

VDD48 3

USB_48MHz 4

GND 5

55 GND

Output Features:

54 **FS0/REF0

53 **FS1/REF1

52 REF2

•

3 - 14.318 MHz REF clocks

1 - USB_48MHz USB clock

1 - HyperTransport 66 MHz clock seed

1 - PCI 33 MHz clock seed

2 - Pairs of AMD K8 clocks

NC 6

SCLK 7

SDATA 8

**FS2 9

51 VDDPCI

50 PCICLK0

49 GNDPCI

48 VDDHTT

47 HTTCLK0

46 GNDHTT

45 CPUCLK8T0

44 CPUCLK8C0

43 VDDCPU

42 GNDCPU

41 CPUCLK8T1

40 CPUCLK8C1

39 VDDA

6 - Pairs of SRC/PCI Express* clocks

2 - Pairs of ATIG (SRC/PCI Express) clocks

**CLKREQA# 10

**CLKREQB# 11

SRCCLKT7 12

SRCCLKC7 13

VDDSRC 14

GNDSRC 15

SRCCLKT6 16

SRCCLKC6 17

SRCCLKT5 18

SRCCLKC5 19

GNDSRC 20

VDDSRC 21

SRCCLKT4 22

SRCCLKC4 23

SRCCLKT3 24

SRCCLKC3 25

GNDSRC 26

ATIGCLKT1 27

ATIGCLKC1 28

Features:

•

2 - Programmable Clock Request pins for SRC

clocks

•

ATIGCLKS are programmable for frequency

Spread Spectrum for EMI reduction

Outputs may be disabled via SMBus

External crystal lead capacitors for maximum

frequency accuracy

38 GNDA

37 IREF

36 GNDSRC

35 VDDSRC

34 SRCCLKT0

33 SRCCLKC0

32 VDDATI

31 GNDATI

30 ATIGCLKT0

29 ATIGCLKC0

Pins preceeded by '**' have a 120 Kohm Internal Pull Down resistor

Note:

56 Pin SSOP/TSSOP

Power Groups

Functionality

Pin Number

CPU

MHz

Hi-Z

HTT

MHz

Hi-Z

PCI

MHz

Hi-Z

FS2

FS1

FS0

Description

VDD

GND

Xtal, REF

X/3

X/6

PCICLK output

HTTCLK output

CPU Outputs

180.00

220.00

100.00

133.33

60.00

73.12

66.66

30.00

36.56

33.33

14, 21,

32,35

15, 20,

26,31,36

SRC outputs

200.00

66.66

33.33

Analog, CPU PLL

USB_48MHz output

0937H—05/26/05

*Other names and brands may be claimed as the property of others.

12 3 4 5 6 7...27

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