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| 型号： | MPC9448AC |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | 9448 SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封装： | LEAD FREE, LQFP-32 |
| 文件页数： | 1/12页 |
| 文件大小： | 486K |
| 代理商： | MPC9448AC |
MPC9448
IDT / ICS LVCMOS 1:12 CLOCK FANOUT BUFFER
1
MPC9448
REV 5 JULY 11, 2006
3.3 V/2.5 V LVCMOS 1:12 Clock
Fanout Buffer
The Freescale Semiconductor, Inc. MPC9448 is a 3.3 V or 2.5 V compatible,
1:12 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
12 LVCMOS compatible clock outputs
Selectable LVCMOS and differential LVPECL compatible clock 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
3.3 V or 2.5 V power supply
Drives up to 24 series terminated clock lines
Ambient temperature range -40°C to +85°C
32-Lead LQFP packaging
32-lead Pb-free package available
Supports clock distribution in networking, telecommunication and computing
applications
Pin and function compatible to MPC948
Functional Description
The MPC9448 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
Ω terminated
transmission lines on the incident edge. Each output is capable of driving either one parallel terminated or two series terminated
transmission lines.
Two selectable, independent clock inputs are available, providing support of LVCMOS and differential LVPECL clock distribu-
tion systems. The MPC9448 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 2.5 V or 3.3 V power supply and an ambient temperature range of -40°C to +85°C. The MPC9448 is pin and function compatible
but performance-enhanced to the MPC948.
LOW VOLTAGE
3.3 V/2.5 V LVCMOS 1:12
CLOCK FANOUT BUFFER
FA SUFFIX
32-LEAD LQFP PACKAGE
CASE 873A-03
AC SUFFIX
32-LEAD LQFP PACKAGE
Pb-FREE PACKAGE
CASE 873A-03
DATA SHEET
MPC9448
IDT 3.3 V/2.5 V LVCMOS 1:12 Clock Fanout Buffer
Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc
MPC9448
1
3.3 V/2.5 V LVCMOS 1:12 Clock
Fanout Buffer
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC9448ACR2 | 功能描述:时钟缓冲器 FSL 1-12 LVCMOS Fanout Buffer 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 |
| MPC9448D | 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 |
| MPC9448FA | 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 |
| MPC9448FAR2 | 功能描述:IC CLOCK BUFFER MUX 2:12 32-LQFP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器，驱动器 系列:- 标准包装:1 系列:HiPerClockS™ 类型:扇出缓冲器（分配），多路复用器 电路数:1 比率 - 输入:输出:2:18 差分 - 输入:输出:是/无 输入:CML，LVCMOS，LVPECL，LVTTL，SSTL 输出:LVCMOS，LVTTL 频率 - 最大:250MHz 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7） 包装:- 其它名称:800-1923-6 |
| MPC9449 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:3.3V / 2.5 V 1:15 PECL/LVCMOS |
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