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參數(shù)資料
| 型號(hào)： | MPC9448AC |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC CLOCK BUFFER MUX 1:12 32-LQFP |
| 標(biāo)準(zhǔn)包裝： | 250 |
| 類(lèi)型： | 扇出緩沖器（分配），多路復(fù)用器 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:12 |
| 差分 - 輸入:輸出： | 是/無(wú) |
| 輸入： | LVCMOS，LVPECL |
| 輸出： | LVCMOS |
| 頻率 - 最大： | 350MHz |
| 電源電壓： | 2.375 V ~ 3.465 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 32-LQFP |
| 供應(yīng)商設(shè)備封裝： | 32-TQFP（7x7） |
| 包裝： | 托盤(pán) |
| 其它名稱(chēng)： | 800-2011 MPC9448ACIDT-ND |
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DATASHEET
3.3 V/2.5 V LVCMOS 1:12 Clock
Fanout Buffer
MPC9448
NRND
MPC9448 REVISION 7 DECEMBER 21, 2012
1
2012 Integrated Device Technology, Inc.
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, Pb-free
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
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
AC SUFFIX
32-LEAD LQFP PACKAGE
Pb-FREE PACKAGE
CASE 873A-03
NRND – Not Recommend for New Designs
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC9448ACR2 | 功能描述:時(shí)鐘緩沖器 FSL 1-12 LVCMOS Fanout Buffer RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel |
| MPC9448D | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:3.3V/2.5V LVCMOS 1:12 Clock Fanout Buffer |
| MPC9448FA | 功能描述:時(shí)鐘緩沖器 2.5 3.3V 275MHz Clock Generator RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel |
| MPC9448FAR2 | 功能描述:IC CLOCK BUFFER MUX 2:12 32-LQFP RoHS:否 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘緩沖器，驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:HiPerClockS™ 類(lèi)型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無(wú) 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱(chēng):800-1923-6 |
| MPC9449 | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:3.3V / 2.5 V 1:15 PECL/LVCMOS |
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