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參數資料
| 型號： | MPC941FAR2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 941 SERIES, LOW SKEW CLOCK DRIVER, 27 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
| 封裝： | 7 X 7 MM, LQFP-48 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 326K |
| 代理商： | MPC941FAR2 |
6
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MPC941/D
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
539
Low Voltage 1:27 Clock
Distribution Chip
The MPC941 is a 1:27 low voltage clock distribution chip. The device
features the capability to select either a differential LVPECL or an
LVCMOS compatible input. The 27 outputs are LVCMOS compatible and
feature the drive strength to drive 50
series or parallel terminated trans-
mission lines. With output–to–output skews of 250ps, the MPC941 is
ideal as a clock distribution chip for the most demanding of synchronous
systems. For a similar product with a smaller number of outputs, please
consult the MPC940 data sheet.
LVPECL or LVCMOS Clock Input
250ps Maximum Output–to–Output Skew
Drives Up to 54 Independent Clock Lines
Maximum Output Frequency of 250MHz
High Impedance Output Enable
Extended Temperature Range: –40°C to +85°C
48–Lead LQFP Packaging
3.3V or 2.5V VCC Supply Voltage
With a low output impedance, in both the HIGH and LOW logic states,
the output buffers of the MPC941 are ideal for driving series terminated
transmission lines. More specifically, each of the 27 MPC941 outputs can
drive two series terminated 50
transmission lines. With this capability,
the MPC941 has an effective fanout of 1:54. With this level of fanout, the
MPC941 provides enough copies of low skew clocks for most high perfor-
mance synchronous systems.
The differential LVPECL inputs of the MPC941 allow the device to interface directly with an LVPECL fanout buffer like the
MC100EP111 to build very wide clock fanout trees or to couple to a high frequency clock source. The LVCMOS input provides a
more standard interface for applications requiring only a single clock distribution chip at relatively low frequencies. In addition, the
two clock sources can be used as a test clock interface as well as the primary system clock. A logic HIGH on the
LVCMOS_CLK_Sel pin will select the LVCMOS level clock input.
The MPC941 is fully 3.3V and 2.5V compatible. The 48–lead LQFP package was chosen to optimize performance, board
space and cost of the device. The 48–lead LQFP has a 7x7mm body size.
Rev 4
MPC941
LOW VOLTAGE 3.3V/2.5V
1:27 CLOCK
DISTRIBUTION CHIP
FA SUFFIX
48–LEAD LQFP PACKAGE
CASE 932
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For More Information On This Product,
Go to: www.freescale.com
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相關PDF資料 |
PDF描述 |
|---|---|
| MPC941AER2 | 941 SERIES, LOW SKEW CLOCK DRIVER, 27 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
| MPC941FA | 941 SERIES, LOW SKEW CLOCK DRIVER, 27 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
| MPC941AE | 941 SERIES, LOW SKEW CLOCK DRIVER, 27 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
| MPC942CFA | LOW SKEW CLOCK DRIVER, 18 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| MPC9443FAR2 | LOW SKEW CLOCK DRIVER, 16 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MPC942C | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:LOW VOLTAGE 1:18 CLOCK DISTRIBUTION CHIP |
| MPC942CAC | 功能描述:時鐘驅動器及分配 FSL 1-27 LVCMOS Fanout Buffer 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 |
| MPC942CACR2 | 功能描述:時鐘驅動器及分配 FSL 1-27 LVCMOS Fanout Buffer 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 |
| MPC942CFA | 功能描述:時鐘驅動器及分配 FSL 1-27 LVCMOS Fanout Buffer 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 |
| MPC942CFAR2 | 制造商:Integrated Device Technology Inc 功能描述:Clock Fanout Buffer 18-OUT 32-Pin TQFP T/R |
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