參數(shù)資料
型號: CY28547LFXC
廠商: Silicon Laboratories Inc
文件頁數(shù): 2/24頁
文件大?。?/td> 0K
描述: IC CLOCK CK505/410M INTEL 72QFN
標準包裝: 240
類型: 時鐘/頻率發(fā)生器
PLL:
主要目的: Intel CPU 服務器
輸入: LVTTL,晶體
輸出: HCSL,LVCMOS
電路數(shù): 1
比率 - 輸入:輸出: 3:23
差分 - 輸入:輸出: 無/是
頻率 - 最大: 200MHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 72-VFQFN 裸露焊盤
供應商設備封裝: 72-QFN(10x10)
包裝: 托盤
CY28547
.....................Document #: 001-05103 Rev *B Page 10 of 24
The CY28547 requires a Parallel Resonance Crystal. Substi-
tuting a series resonance crystal will cause the CY28547 to
operate at the wrong frequency and violate the ppm specifi-
cation. For most applications there is a 300-ppm frequency
4
0
CLKREQ#6
CLKREQ#6 Input Enable
0 = Disabled, 1 = Enabled
3
0
CLKREQ#5
CLKREQ#5 Input Enable
0 = Disabled, 1 = Enabled
2
0
CLKREQ#4
CLKREQ#4 Input Enable
0 = Disabled, 1 = Enabled
1
0
CLKREQ#3
CLKREQ#3 Input Enable
0 = Disabled, 1 = Enabled
0
CLKREQ#2
CLKREQ#2 Input Enable
0 = Disabled, 1 = Enabled
Byte 13 Control Register 13 (continued)
Bit
@Pup
Name
Description
Byte 14 Control Register 14
Bit
@Pup
Name
Description
7
0
CLKREQ#1
CLKREQ#1 Input Enable
0 = Disabled, 1 = Enabled
6
1
LCD 96_100M Clock
Speed
LCD 96_100M Clock Speed
0 = 96 MHz 1 = 100 MHz
5
1
RESERVED
RESERVED, Set = 1
4
1
RESERVED
RESERVED, Set = 1
3
1
PCI4
PCI4 (Spread and Non-spread) Output Drive Strength
0 = Low, 1 = High
2
1
PCI3
PCI3 (Spread and Non-spread) Output Drive Strength
0 = Low, 1 = High
1
PCI2
PCI2 (Spread and Non-spread) Output Drive Strength
0 = Low, 1 = High
0
1
PCI1
PCI1 (Spread and Non-spread) Output Drive Strength
0 = Low, 1 = High
Byte 15 Control Register 15
Bit
@Pup
Name
Description
7
HW
TME_STRAP
Trusted mode enable strap status,
0 = Normal
1 = No overclocking (default)
6
1
RESERVED
5
1
RESERVED
4
1
RESERVED
3
1
RESERVED
2
0
IO_VOUT2
IO_VOUT[2,1,0]
000 = 0.63V
001 = 0.71V
010 = 0.77V
011 = 0.82V (Default)
100 = 0.86V
101 = 0.90V
110 = 0.93V
111 = Reserved
1
IO_VOUT1
0
1
IO_VOUT0
Table 6. Crystal Recommendations
Frequency
(Fund)
Cut
Loading
Load Cap
Drive
(max.)
Shunt Cap
(max.)
Motional
(max.)
Tolerance
(max.)
Stability
(max.)
Aging
(max.)
14.31818 MHz
AT
Parallel
20 pF
0.1 mW
5 pF
0.016 pF
35 ppm
30 ppm
5 ppm
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