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参数资料
| 型号： | RC7144 |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 150 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封装： | SSOP-48 |
| 文件页数： | 2/16页 |
| 文件大小： | 61K |
| 代理商： | RC7144 |
RC7144
PRODUCT SPECIFICATION
10
Pr
eliminar
y
Infor
mation
Table 4. Select Function for Data Byte 0, Bits 0:1
Table 5. Frequency Selection Table Through I2C Programming
Table 6. Test Mode
Note:
1. See table 5 for frequency selection.
Function
Input Conditions
Output Conditons
Data Byte 0
CPU
PC1
IOAPIC
REF0:1
48 MHz
24 MHz
Bit 1
Bit 0
Normal Operation
0
NOTE 1
14.318 M
48 M
24 M
Spread Spectrum
1
0
±0.5%
14.318 M
48 M
24 M
Tristate
1
Hi-Z
Input Conditons
CPU (MHz)
PCI (MHz)
Data Byte 0, Bit 3 = 1
Bit 2
FS3
Bit 6
FS2
Bit 5
FS1
Bit 4
FS0
1
133.3
33.3
1
0
124
31
1
0
1
150
37.5
1
0
140
35
1
0
1
105
35
1
0
1
0
110
36.7
1
0
1
115
38.3
1
0
120
40
0
1
100
33.3
0
1
0
133.3
44.43
0
1
0
1
112
37.3
0
1
0
103
34.3
0
1
66.8
33.4
0
1
0
83.3
41.7
0
1
75
37.5
0
124
41.3
Function
Input Condition Data Byte4
CPU
PCI
REF, IOAPIC
48MHz
24MHz
Normal
1
Note 1
14.318
48
24
Test Mode
0
X1
CPU/2 or 3
X1
X1/2
X1/4
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