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| 型号： | MPC9447ACR2 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | 9447 SERIES, LOW SKEW CLOCK DRIVER, 9 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封装： | PLASTIC, LQFP-32 |
| 文件页数： | 1/7页 |
| 文件大小： | 296K |
| 代理商： | MPC9447ACR2 |
6
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order Number: MPC9447/D
Rev 2, 04/2003
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
574
3.3V/2.5V 1:9 LVCMOS Clock
Fanout Buffer
The MPC9447 is a 3.3V or 2.5V compatible, 1:9 clock fanout buffer
targeted for high performance clock tree applications. With output
frequencies up to 350 MHz and output skews less than 150 ps, the device
meets the needs of most demanding clock applications.
Features
9 LVCMOS Compatible Clock Outputs
2 Selectable, LVCMOS Compatible Inputs
Maximum Clock Frequency of 350 MHz
Maximum Clock Skew of 150 ps
Synchronous Output Stop in Logic Low State Eliminates Output Runt
Pulses
High–Impedance Output Control
3.3V or 2.5V Power Supply
Drives up to 18 Series Terminated Clock Lines
Ambient Temperature Range –40_C to +85_C
32 Lead LQFP Packaging
Supports Clock Distribution in Networking, Telecommunications, and
Computer Applications
Pin and Function Compatible to MPC947
Functional Description
MPC9447 is specifically designed to distribute LVCMOS compatible
clock signals up to a frequency of 350 MHz. Each output provides a
precise copy of the input signal with a near zero skew. The outputs buffers
support driving of 50
W terminated transmission lines on the incident
edge: each is capable of driving either one parallel terminated or two
series terminated transmission lines.
Two selectable independent LVCMOS compatible clock inputs are available, providing support of redundant clock source
systems. The MPC9447 CLK_STOP control is synchronous to the falling edge of the input clock. It allows the start and stop of the
output clock signal only in a logic low state, thus eliminating potential output runt pulses. Applying the OE control will force the
outputs into high–impedance mode.
All inputs have an internal pull–up or pull–down resistor preventing unused and open inputs from floating. The device supports
a 2.5V or 3.3V power supply and an ambient temperature range of –40
_C to +85_C. The MPC9447 is pin and function compatible
but performance–enhanced to the MPC947.
FA SUFFIX
32–LEAD LQFP PACKAGE
CASE 873A
MPC9447
LOW VOLTAGE
3.3 V/2.5 V LVCMOS 1:9
CLOCK FANOUT BUFFER
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC9447D | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer |
| MPC9447FA | 功能描述:时钟缓冲器 2.5 3.3V 275MHz Clock Generator RoHS:否 制造商:Texas Instruments 输出端数量:5 最大输入频率:40 MHz 传播延迟（最大值）: 电源电压-最大:3.45 V 电源电压-最小:2.375 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LLP-24 封装:Reel |
| MPC9447FAR2 | 制造商:Integrated Device Technology Inc 功能描述:Clock Driver 2-IN LVCMOS 32-Pin LQFP T/R 制造商:Integrated Device Technology Inc 功能描述:CLOCK DRVR 2-IN LVCMOS 32LQFP - Tape and Reel |
| MPC9448 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer |
| MPC9448AC | 功能描述:时钟缓冲器 3.3V 900MHz Clock Generator RoHS:否 制造商:Texas Instruments 输出端数量:5 最大输入频率:40 MHz 传播延迟（最大值）: 电源电压-最大:3.45 V 电源电压-最小:2.375 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LLP-24 封装:Reel |
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