Datasheet > MPC946FA

MPC946FA

更新时间： 2024-09-23 20:04:31

品牌	Logo	应用领域
恩智浦 - NXP		驱动输出元件逻辑集成电路
页数	文件大小	规格书
4页	261K
描述
IC,1:10 OUTPUT,CMOS,QFP,32PIN,PLASTIC

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MPC946FA 技术参数

生命周期：	Transferred	零件包装代码：	QFP
包装说明：	LQFP,	针数：	32
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.44	系列：	946
输入调节：	MUX	JESD-30 代码：	S-PQFP-G32
长度：	7 mm	逻辑集成电路类型：	LOW SKEW CLOCK DRIVER
功能数量：	1	反相输出次数：
端子数量：	32	实输出次数：	10
最高工作温度：	70 °C	最低工作温度：
输出特性：	3-STATE	封装主体材料：	PLASTIC/EPOXY
封装代码：	LQFP	封装形状：	SQUARE
封装形式：	FLATPACK, LOW PROFILE	传播延迟（tpd）：	12 ns
认证状态：	Not Qualified	Same Edge Skew-Max（tskwd）：	0.45 ns
座面最大高度：	1.6 mm	最大供电电压 (Vsup)：	3.6 V
最小供电电压 (Vsup)：	3 V	标称供电电压 (Vsup)：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL	端子形式：	GULL WING
端子节距：	0.8 mm	端子位置：	QUAD
宽度：	7 mm	最小 fmax：	150 MHz
Base Number Matches：	1

MPC946FA 数据手册

Freescale Semiconductor, Inc.

SEMICONDUCTOR TECHNICAL DATA

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Order this document

by MPC946/D

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See Upgrade Product – MPC9446

The MPC946 is a low voltage CMOS, 1:10 clock buffer. The 10 outputs

can be configured into a standard fanout buffer or into 1X and 1/2X com-

binations. The ten outputs were designed and optimized to drive 50Ω

series or parallel terminated transmission lines. With output to output

skews of 350ps the MPC946 is an ideal clock distribution chip for syn-

chronous systems which need a tight level of skew from a large number of

outputs. For a similar product with more outputs consult the MPC949 data

sheet.

LOW VOLTAGE

1:10 CMOS CLOCK DRIVER

• 2 Selectable LVCMOS/LVTTL Clock Inputs

• 350ps Output to Output Skew

• Drives up to 20 Series Terminated Independent Clock Lines

• Maximum Input/Output Frequency of 150MHz

• Tristatable Outputs

• 32–Lead LQFP Packaging

• 3.3V VCC Supply

With an output impedance of approximately 7Ω, in both the HIGH and

the LOW logic states, the output buffers of the MPC946 are ideal for driv-

ing series terminated transmission lines. More specifically each of the 10

MPC946 outputs can drive two series terminated transmission lines. With

this capability, the MPC946 has an effective fanout of 1:20 in applications

using point–to–point distribution schemes.

FA SUFFIX

LQFP PACKAGE

CASE 873A

The MPC946 has the capability of generating 1X and 1/2X signals from

a 1X source. The design is fully static, the signals are generated and

retimed inside the chip to ensure minimal skew between the 1X and 1/2X

signals. The device features selectability to allow the user to select the

ratio of 1X outputs to 1/2X outputs.

Two independent LVCMOS/LVTTL compatible clock inputs are available. Designers can take advantage of this feature to

provide redundant clock sources or the addition of a test clock into the system design. With the TCLK_Sel input pulled HIGH the

TCLK1 input is selected.

All of the control inputs are LVCMOS/LVTTL compatible. The Dsel pins choose between 1X and 1/2X outputs. A LOW on the

Dsel pins will select the 1X output. The MR/Tristate input will reset the internal flip flops and tristate the outputs when it is forced

HIGH.

The MPC946 is fully 3.3V compatible. The 32–lead LQFP package was chosen to optimize performance, board space and

cost of the device. The 32–lead LQFP has a 7x7mm body size with a conservative 0.8mm pin spacing.

Rev 2

MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA

607

For More Information On This Product,

Go to: www.freescale.com

12 3 4

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与MPC946FA相关器件

型号	品牌	获取价格	描述	数据表
MPC946FAR2	MOTOROLA	获取价格	MPC900 SERIES, LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32, 7 X
MPC946FAR2	NXP	获取价格	946 SERIES, LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32, 7 X 7
MPC947	MOTOROLA	获取价格	LOW VOLTAGE 1:9 CLOCK DISTRIBUTION CHIP
MPC947FA	MOTOROLA	获取价格	Low Skew Clock Driver, LVCMOS/LVTTL Series, 9 True Output(s), 0 Inverted Output(s), CMOS,
MPC947FAR2	NXP	获取价格	947 SERIES, LOW SKEW CLOCK DRIVER, 9 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32, 7 X 7 M
MPC948	MOTOROLA	获取价格	LOW VOLTAGE 1:12 CLOCK DISTRIBUTION CHIP
MPC948FA	MOTOROLA	获取价格	LVPECL/LVCMOS/LVTTL SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S)
MPC948FAR2	IDT	获取价格	Low Skew Clock Driver, 948 Series, 12 True Output(s), 0 Inverted Output(s), CMOS, PQFP32,
MPC948FAR2	MOTOROLA	获取价格	LVPECL/LVCMOS/LVTTL SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S)
MPC948L	MOTOROLA	获取价格	LOW VOLTAGE 1:12 CLOCK DISTRIBUTION CHIP

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