ICS950410 Datasheet, PDF (1/15 Pages) Integrated Circuit Systems – AMD - K System Clock Chip

Integrated
Circuit
Systems, Inc.
ICS950410
Advance Information
AMD - K8™ System Clock Chip
Recommended Application:
AMD K8 System Clock with AMD, VIA or ALI Chipset
Pin Configuration
~*FS0/REF0 1
48 REF1/FS1*
Output Features:
VDDHTT 2
• 3 - Differential pair push-pull CPU clocks @
X1 3
3.3V
X2 4
• 9 - PCICLK (Including 1 free running) @ 3.3V
GND 5
• 3 - Selectable PCICLK/HTTCLK @ 3.3V
*ModeA/HTTCLK0 6
• 1 - HTTCLK @ 3.3V
*ModeB/PCICLK8/HTTCLK1 7
• 1 - 48MHz @ 3.3V fixed.
PCICLK9/HTTCLK2 8
• 1 - 24/48MHz @ 3.3V
VDDPCI 9
• 2 - REF @ 3.3V, 14.318MHz.
GND 10
Features:
PCICLK11/HTTCLK3 11
• Programmable output frequency.
*FS2/PCICLK10 12
• Programmable output divider ratios.
PCICLK0 13
• Programmable output rise/fall time.
PCICLK1 14
• Programmable output skew.
GND 15
• Programmable spread percentage for EMI
control.
• Watchdog timer technology and RESET# output
to reset system
if system malfunctions.
• Programmable watch dog safe frequency.
• Support I²C Index read/write and block read/
write operations.
VDDPCI 16
PCICLK2 17
PCICLK3 18
VDDPCI 19
GND 20
2X_{PCICLK4 21}
2X_{PCICLK5 22}
• Uses external 14.318MHz crystal.
2X_{PCICLK6 23}
• Supports Hyper Transport Technology (HTTCLK).
2X_{PCICLK7 24}
47 GND
46 VDDREF
45 Reset#
44 VDDA
43 GND
42 CPUCLK8T0
41 CPUCLK8C0
40 VDDCPU
39 CPUCLK8T1
38 CPUCLK8C1
37 GND
36 VDDCPU
35 CPUCLK8T2
34 CPUCLK8C2
33 GND
32 Turbo#
31 PD#*
30 48MHz/FS3**
29 GND
28 AVDD48
27 24_48MHz/Sel24_48#*
26 SDATA
25 SCLK
48-SSOP
Functionality
FS3 FS2 FS1 FS0 ^CPU
MHz
HTT
MHz
0
0
0
0 100.90 67.27
0
0
0
1 133.90 66.95
0
0
1
0 168.00 67.20
0
0
1
1 202.00 67.33
0
1
0
0 100.20 66.80
0
1
0
1 133.50 66.75
0
1
1
0 166.70 66.68
0
1
1
1 200.40 66.80
1
0
0
0 150.00 60.00
PCI
MHz
33.63
33.48
33.60
33.67
33.40
33.38
33.34
33.40
30.00
* Internal Pull-Up Resistor
2X _{This Output has 2X Default Drive and can be programmaed lower via IIC}
~ This Output has 1.5x drive
1
0
0
1 180.00 60.00 30.00
1
0
1
0 210.00 70.00 35.00
1
0
1
1 240.00 60.00 30.00
1
1
0
0 270.00 67.50 33.75
1
1
0
1 233.33 66.67 33.33
1
1
1
0 266.67 66.67 33.33
1
1
1
1 300.00 75.00 37.50
0888—04/06/04
ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.
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