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参数资料
| 型号： | MPC9443FAR2 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | LOW SKEW CLOCK DRIVER, 16 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
| 封装： | 7 X 7 MM, PLASTIC, LQFP-48 |
| 文件页数： | 1/16页 |
| 文件大小： | 205K |
| 代理商： | MPC9443FAR2 |
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order number: MPC9443
Rev 3, 06/2004
Motorola, Inc. 2004
2.5 V and 3.3 V LVCMOS Clock
Fanout Buffer
The MPC9443 is a 2.5 V and 3.3 V compatible 1:16 clock distribution buffer
designed for low-voltage high-performance telecom, networking and
computing applications. The device supports 3.3 V, 2.5 V and dual supply
voltage (mixed-voltage) applications. The MPC9443 offers 16 low-skew
outputs which are divided into 4 individually configurable banks. Each output
bank can be individually supplied by 2.5 V or 3.3 V, individually set to run at 1X
or 1/2X of the input clock frequency or be disabled (logic low output state). Two
selectable LVPECL compatible inputs support differential clock distribution
systems. In addition, one selectable LVCMOS input is provided for LVCMOS
clock distribution systems. The MPC9443 is specified for the extended
temperature range of –40 to +85°C.
Features
Configurable 16 outputs LVCMOS clock distribution buffer
Compatible to single, dual and mixed 3.3 V / 2.5 V voltage supply
Output clock frequency up to 350 MHz
Designed for high-performance telecom, networking and computer
applications
Supports applications requiring clock redundancy
Max. output skew of 250 ps (125 ps within one bank)
Selectable output configurations per output bank
Individually per-bank high-impedance tristate
Output disable (stop in logic low state) control
48 ld LQFP package
Ambient operating temperature range of –40 to 85°C
Functional Description
The MPC9443 is a full static design supporting clock frequencies up to 350 MHz. The signals are generated and retimed on-chip
to ensure minimal skew between the four output banks.
Two independent LVPECL compatible clock inputs are available. This feature supports redundant differential clock sources.
In addition, the MPC9443 supports single-ended LVCMOS clock distribution systems. Each of the four output banks can be individu-
ally supplied by 2.5 V or 3.3 V, supporting mixed voltage applications. The FSELx pins choose between division of the input reference
frequency by one or two. The frequency divider can be set individually for each output bank. The MPC9443 output banks are in
high-impedance state by deasserting the OEN pins. Asserting OEN will the enable output banks. Please see Table 4. Output High-
Impedance Control (OEN) for details. The outputs can be synchronously stopped (logic low state). The outputs provide LVCMOS
compatible levels with the capability to drive terminated 50
transmission lines. For series terminated transmission lines, each of the
MPC9443 outputs can drive one or two traces giving the devices an effective fanout of 1:32 at VCC = 3.3 V. The device is packaged
in a 7x7 mm2 48-lead LQFP package.
MPC9443
LOW VOLTAGE SUPPLY
2.5 V AND 3.3 V LVCMOS
CLOCK FANOUT BUFFER
SCALE 2:1
FA SUFFIX
48-LEAD LQFP PACKAGE
CASE 932-03
相关PDF资料 |
PDF描述 |
|---|---|
| MPC9446FA | LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| MPC9447ACR2 | 9447 SERIES, LOW SKEW CLOCK DRIVER, 9 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| MPC9448ACR2 | 9448 SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| MPC9448AC | 9448 SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| MPC94551D | LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC9446 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:2.5V and 3.3V LVCMOS Clock Fanout Buffer |
| MPC9446AC | 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 |
| MPC9446ACR2 | 功能描述:时钟驱动器及分配 FSL 1-10 LVCMOS Fanout Buffer RoHS:否 制造商:Micrel 乘法/除法因子:1:4 输出类型:Differential 最大输出频率:4.2 GHz 电源电压-最大: 电源电压-最小:5 V 最大工作温度:+ 85 C 封装 / 箱体:SOIC-8 封装:Reel |
| MPC9446FA | 功能描述:时钟缓冲器 2.5 3.3V 250MHz 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 |
| MPC9446FAR2 | 功能描述:时钟驱动器及分配 FSL 1-10 LVCMOS Fanout Buffer RoHS:否 制造商:Micrel 乘法/除法因子:1:4 输出类型:Differential 最大输出频率:4.2 GHz 电源电压-最大: 电源电压-最小:5 V 最大工作温度:+ 85 C 封装 / 箱体:SOIC-8 封装:Reel |
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