參數(shù)資料
型號(hào)： CY28326OCT
廠商： CYPRESS SEMICONDUCTOR CORP
元件分類： XO, clock
英文描述： FTG for VIA PT880 Serial Chipset
中文描述： 333.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
封裝： SSOP-48
文件頁數(shù)： 3/23頁
文件大小： 288K
代理商： CY28326OCT
CY28326
Document #: 38-07616 Rev. *A
Page 3 of 23
24
VDD48
AGP0/AGP2
*RatioSEL
/AGP1
I
Power for 48MHz clock output.
AGP Clock Output.
Power-on Bi-directional Input/output.
At power up, RatioSel is
the input. when the power supply voltage crosses the input
threshold voltage, RatioSel state is latched and this pin becomes
AGP clock output. Default pull-up.
3.3V power supply for AGP clock output.
Ground for AGP clock output.
System Reset Control Output.
Serial clock input.
Conforms to the Philips I
2
C specification.
Serial clock input.
Conforms to the Philips I
2
C specification of a
Slave Receive/Transmit device. it is an input when receiving data.
It is open drain output when acknowledging or transmitting data.
VTT_PWRGD: 3.3V LVTTL input to determine when FS[D:A],
MODE, RatioSEL and 24_48_SEL inputs are valid and ready to
be sampled.
PD#: Invokes powerdown mode. Default Internal pull up.
Power for 25 MHz clock output. 3.3V Power Supply.
25 MHz Clock Output.
Ground for 25 MHz clock output.
CPU Clock outputs.
Power for CPU clock output.
Ground for CPU clock output.
Current Reference.
A precision resistor is attached to this pin,
which is connected to the internal current reference.
Ground for output.
3.3V Power Supply for output
25,29
26
VDDAGP
VDDAGP
O
I/O
27
28
30
31
32
VDDAGP
VSSAGP
SRESET#
SCLK
SDATA
I
I
O
I
I/O
33
*VTT_PWRG
D/PD#
I
34
VDDSRC
25MHz[0:1]
VSSSRC
I
35,36
37
VDDSRC
O
I
O
I
I
I
39,38,42,41,45,44 CPU[T/C][0:2] VDDCPU
40
VDDCPU
43
VSSCPU
46
IREF
47
48
VSSA
VDDA
I
I
Table 1. Frequency Table
FS(D:A)
FS(3:0)
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
CPU (MHz)
110.0
146.6
220.0
183.3
233.3
266.6
333.3
300.0
100.9
133.9
200.9
166.9
100.0
133.3
200.0
166.6
AGP (MHz)
73.3
73.3
73.3
73.3
66.7
66.7
66.7
66.7
67.3
67.0
67.0
66.8
66.7
66.7
66.7
66.7
PCI (MHz)
36.6
36.6
36.6
36.6
33.3
33.3
33.3
33.3
33.6
33.5
33.5
33.4
33.3
33.3
33.3
33.3
SATA (MHz)
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
VCO (MHz)
660.00
586.68
440.00
733.33
466.67
533.33
666.67
600.00
807.2
803.4
803.6
667.6
800.00
800.00
800.00
666.67
PLL Gear
Constant
(Million)
25.00258122
37.50387182
75.00774365
37.50387182
75.00774365
75.00774365
75.00774365
75.00774365
18.75193591
25.00258122
37.50387182
37.50387182
18.75193591
25.00258122
37.50387182
37.50387182
Pin Definition
(continued)
Pin No.
Name
PWR
Type
Description
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY28326OXC 制造商:Rochester Electronics LLC 功能描述:- Bulk
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CY28326SPC 制造商:Cypress Semiconductor 功能描述:
CY28329 制造商:SPECTRALINEAR 制造商全稱:SPECTRALINEAR 功能描述:133 MHz Spread Spectrum Clock Synthesizer/Driver with Differential CPU Outputs
CY28329OXC 功能描述:時(shí)鐘驅(qū)動(dòng)器及分配 Intel CK-408B for Plumas chipset RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel
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