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參數(shù)資料
| 型號： | MPC905EF |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO16 |
| 封裝： | LEAD FREE, PLASTIC, SOIC-16 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 649K |
| 代理商： | MPC905EF |
1:6 PCI CLOCK GENERATOR/
FANOUT BUFFER
MPC905
IDT / ICS PCI CLOCK GENERATOR/FANOUT BUFFER
1
MPC905 REV 4 JANUARY 8, 2008
1:6 PCI Clock Generator/
Fanout Buffer
The MPC905 is a six output clock generation device targeted to provide the
clocks required in a 3.3 V or 5.0 V PCI environment. The device operates from a
3.3 V supply and can interface to either a TTL input or an external crystal. The
inputs to the device can be driven with 5.0 V when the VCC is at 3.3 V. The
outputs of the MPC905 meet all of the specifications of the PCI standard.
Features
Six Low Skew Outputs
Synchronous Output Enables for Power Management
Low Voltage Operation
XTAL Oscillator Interface
16-Lead SOIC Package
5.0 V Tolerant Enable Inputs
Functional Description
The MPC905 device is targeted for PCI bus or processor bus environments
with up to 12 clock loads. Each of the six outputs on the MPC905 can drive two
series terminated 50
transmission lines. This capability effectively makes the
MPC905 a 1:12 fanout buffer.
The MPC905 offers two synchronous enable inputs to allow users flexibility in
developing power management features for their designs. Both enable signals
are active HIGH inputs. A logic ‘0’ on the ENABLE1 will pull outputs 0 to 4 into the logic ‘0’ state. A logic ‘1’ on the ENABLE1 input
will result in outputs 0 to 4 to be toggling. A logic ‘0’ on ENABLE2 will cause output BLK5 to a logic ‘0’ state, whereas a logic ‘1’
on ENABLE2 will cause output BLK5 to toggle. The oscillator remains on.
The ENABLE2 input can be used to disable any high power device for system power savings during periods of inactivity. Both
enable inputs are synchronized internal to the chip so that the output disabling will happen only when the outputs are already
LOW. This feature guarantees no runt pulses will be generated during enabling and disabling.
1:6 PCI
CLOCK GENERATOR/
FANOUT BUFFER
SCALE 2:1
D SUFFIX
EF SUFFIX (PB-FREE PACKAGE)
PLASTIC SOIC PACKAGE
CASE 751B-05
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC905EFR2 | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 FSL 1-6 PCI Clock Gen./Fanout Buffer RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MPC909 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:LOW VOLTAGE CMOS 1:18 CLOCK DISTRIBUTION CHIP |
| MPC9100 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:DUAL PLL CLOCK GENERATOR |
| MPC9108 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:MULTIPLE OUTPUT CLOCK SYNTHESIZER |
| MPC9109 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:LOW VOLTAGE 1:18 CLOCK DISTRIBUTION CHIP |
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