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参数资料
| 型号： | ICS950806YGT |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56 |
| 封装： | 6.10 MM, 0.50 MM PITCH, MO-153, TSSOP-56 |
| 文件页数： | 1/22页 |
| 文件大小： | 153K |
| 代理商： | ICS950806YGT |
Integrated
Circuit
Systems, Inc.
ICS950806
0650A—07/30/03
Recommended Application
CK-408 clock with driven mode only for Almador - M chipset
with P4 processor. Programmable for group to group skew.
Output Features:
3 Differential CPU Clock Pairs @ 3.3V
7 PCI (3.3V) @ 33.3MHz including 2 early PCI
clocks
3 PCI_F (3.3V) @ 33.3MHz
1 USB (3.3V) @ 48MHz, 1 DOT (3.3V) @ 48MHz
1 REF (3.3V) @ 14.318MHz
5 3V66 (3.3V) @ 66.6MHz
1 VCH/3V66 (3.3V) @ 48MHz or 66.6MHz
3 66MHz_OUT/3V66 (3.3V) @ 66.6MHz_IN
or 66.6MHz
Features:
Provides standard frequencies and additional 5% and
10% over-clocked frequencies
Supports spread spectrum modulation:
No spread, Center Spread (±0.35%, ±0.5%, or
±0.75%), or Down Spread (-0.5%, -1.0%, or -1.5%)
Offers adjustable PCI early clock via I
2C interface
Selectable 1X or 2X strength for REF via I
2C
interface
Efficient power management scheme through PD#,
CLK_STOP# and PCI_STOP#.
Uses external 14.318MHz crystal
Stop clocks and functional control available through
I
2C interface.
Key Specifications:
CPU Output Jitter <150ps
3V66 Output Jitter <250ps
66MHz Output Jitter (Buffered Mode Only) <100ps
CPU Output Skew <100ps
Pin Configuration
Frequency Generator with 200MHz Differential CPU Clocks
Functionality
66MHz_OUT
(2:0)
66MHz_IN
PCICLK_F
3V66 (4:2)
3V66_5
PCICLK
FS2 FS1 FS0
MHz
0
66.66
33.33
0
1
100.00
66.66
33.33
0
1
0
200.00
66.66
33.33
0
1
133.33
66.66
33.33
1
0
66.66
66MHz_IN
Input
66MHz_IN/2
1
0
1
100.00
66.66
66MHz_IN
Input
66MHz_IN/2
1
0
200.00
66.66
66MHz_IN
Input
66MHz_IN/2
1
133.33
66.66
66MHz_IN
Input
66MHz_IN/2
CPUCLK
3V66
Bit
*These inputs have 120K internal pull-up resistors to VDD.
**Internal pull-down resistors to ground.
Note: Almador board level designs MUST use pin 22,
66MHZ_OUT1, as the feedback connection from the
clock buffer path to the Almador (GMCH) chipset.
VDDREF
156 REF
X1
255 FS1
X2
354 FS0
GND
453 CPU_STOP#*
PCICLK_F0
552 CPUCLKT0
PCICLK_F1
651 CPUCLKC0
PCICLK_F2
750 VDDCPU
VDDPCI
849 CPUCLKT1
GND
948 CPUCLKC1
PCICLK0
10
47 GND
**E_PCICLK1/PCICLK1
11
46 VDDCPU
PCICLK2
12
45 CPUCLKT2
**E_PCICLK3/PCICLK3
13
44 CPUCLKC2
VDDPCI
14
43 MULTSEL*
GND
15
42 IREF
PCICLK4
16
41 GND
PCICLK5
17
40 FS2
PCICLK6
18
39 48MHz USB/FS3
**
VDD3V66
19
38 48MHz_DOT
GND
20
37 VDD48
66MHZ_OUT0/3V66_2
21
36 GND
66MHZ_OUT1/3V66_3
22
35 3V66 1/VCH CLK/FS4
**
66MHZ_OUT2/3V66_4
23
34 PCI_STOP#*
66MHZ_IN/3V66_5
24
33 3V66 0/FS5
**
*PD#
25
32 VDD3V66
VDDA
26
31 GND
GND
27
30 SCLK
Vtt_PWRGD#
28
29 SDATA
56-Pin 300mil SSOP
6.10 mm. Body, 0.50 mm. pitch TSSOP
*These inputs have 120K internal pull-up resistors to VDD.
**Internal pull-down resistors to ground.
IC
S950806
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| ICS950810CG | 制造商:INT_CIR_SYS 功能描述: |
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