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參數(shù)資料
| 型號： | ICS9248YF-153-T |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | XO, clock |
| 英文描述： | 133.33 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | 0.300 INCH, SSOP-48 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 293K |
| 代理商： | ICS9248YF-153-T |
Integrated
Circuit
Systems, Inc.
ICS9248-153
Third party brands and names are the property of their respective owners.
Block Diagram
9248-153 Rev B 5/10/01
Functionality
Pin Configuration
48-Pin 300mil SSOP
Recommended Application:
AMD-K7 (AMD 750, Irongate Chipset)
Output Features:
3 differential pair open drain CPU clocks (1.5V external
pull-up; up to 150MHz achieviable through I
2C)
2 - AGPCLK @ 3.3V
8 - PCI @3.3V, including 1 free running
1 - 48MHz @ 3.3V
1 - 24/48MHz @ 3.3V
2- REF @3.3V, 14.318MHz.
Features:
Up to 150MHz frequency support
Support power management: CPU, PCI, stop and Power
down Mode from I
2C programming.
Spread spectrum for EMI control +/-0.25% center spread
Uses external 14.318MHz crystal
FS pins for frequency select
Key Specifications:
CPU – CPU: <200ps
AGP-AGP: <250ps
PCI – PCI: <500ps
CPU - SDRAM_OUT: |250ps|
CPU-AGP: |250ps|
AMD-K7TM System Clock Chip
* Internal 120K pullup resistor on indicated inputs
** Internal 240K pullup resistor on indicated inputs
**FS0/REF0
**FS1/REF1
GNDREF
X1
X2
GNDPCI
PCICLK_F
PCICLK0
VDDPCI
PCICLK1
PCICLK2
GNDPCI
PCICLK3
PCICLK4
VDDPCI
PCICLK5
PCICLK6
VDDAGP
AGP0
AGP1
GNDAGP
VDD48
48MHz
SEL24_48#/24-48MHz
VDDREF
GNDSD
SDRAM_OUT
VDDSD
RESERVED
CPUCLKC2
CPUCLKT2
GNDCPU
CPUCLKC1
CPUCLKT1
GND
CPUCLKC0
CPUCLKT0
RESERVED
VDD
GND
PCI_STOP#
CPU_STOP#
PD#
SPREAD#
FS2*
SDATA
SCLK
GND48
ICS9248-153
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
FS (2:0)
SPREAD#
CPU_STOP#
X1
X2
OSC
PLL
CPU
STOP
PLL2
REF(1:0)
CPUCLKC(2:0)
CPUCLKT(2:0)
SDRAM_OUT
48MHz
PCICLK (6:0)
24_48MHz
PCICLK_F
PCI_STOP#
SEL24_48#
PD#
/ 2
/ 3
PCI
STOP
X 2
/ 2
AGP (1:0)
Power Groups
VDD48, GND48 = 48MHz, PLL2
VDDREF, GNDREF= REF, X1, X2
VDD, GND = PLL Core
0
133.33
33.33
66.67
0
1
95
31.67
63.33
0
1
0
100.99
33.66
67.33
0
1
115
38.33
76.67
1
0
100.7
33.57
67.13
1
0
1
103
34.33
68.67
1
0
105
35.00
70.00
1
110
36.6773.33
PCI
AGP
FS2
FS1
FS0
CPU,
SDRAM
ICS reserves the right to make changes in the device data identified in
this publication without further notice. ICS advises its customers to
obtain the latest version of all device data to verify that any
information being relied upon by the customer is current and accurate.
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