MPC9447AC Freescale Semiconductor, MPC9447AC Datasheet

no-image

MPC9447AC

Manufacturer Part Number
MPC9447AC
Description
IC CLOCK FANOUT BUFF 1:9 32-LQFP
Manufacturer
Freescale Semiconductor
Type
Fanout Buffer (Distribution), Multiplexerr
Datasheet

Specifications of MPC9447AC

Number Of Circuits
1
Ratio - Input:output
2:9
Differential - Input:output
No/No
Input
LVCMOS
Output
LVCMOS
Frequency - Max
350MHz
Voltage - Supply
2.375 V ~ 3.465 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-LQFP
Frequency-max
350MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MPC9447AC
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
MPC9447ACR2
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
SEMICONDUCTOR TECHNICAL DATA
3.3V/2.5V 1:9 LVCMOS 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
Functional Description
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 50Ω terminated transmission lines on the incident
edge: each is capable of driving either one parallel terminated or two
series terminated transmission lines.
systems. The MPC9447 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.
a 2.5V or 3.3V power supply and an ambient temperature range of --40_C to +85_C. The MPC9447 is pin and function compatible
but performance--enhanced to the MPC947.
©
The MPC9447 is a 3.3V or 2.5V compatible, 1:9 clock fanout buffer
MPC9447 is specifically designed to distribute LVCMOS compatible
9 LVCMOS Compatible Clock Outputs
2 Selectable, LVCMOS Compatible 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
3.3V or 2.5V Power Supply
Drives up to 18 Series Terminated Clock Lines
Ambient Temperature Range --40_C to +85_C
32 Lead LQFP Packaging
Supports Clock Distribution in Networking, Telecommunications, and
Computer Applications
Pin and Function Compatible to MPC947
Two selectable independent LVCMOS compatible clock inputs are available, providing support of redundant clock source
All inputs have an internal pull--up or pull--down resistor preventing unused and open inputs from floating. The device supports
Motorola, Inc. 2003
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
CLOCK FANOUT BUFFER
3.3 V/2.5 V LVCMOS 1:9
32--LEAD LQFP PACKAGE
MPC9447
LOW VOLTAGE
CASE 873A
FA SUFFIX
Order Number: MPC9447/D
Rev 2, 04/2003

Related parts for MPC9447AC

MPC9447AC Summary of contents

Page 1

... Freescale Semiconductor, Inc. SEMICONDUCTOR TECHNICAL DATA 3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer The MPC9447 is a 3.3V or 2.5V compatible, 1:9 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 ...

Page 2

... Freescale Semiconductor, Inc. MPC9447 CCLK0 0 CLK STOP CCLK1 CLK_SEL V CC SYNC CLK_STOP V CC (all input resistors have a value of 25kΩ) OE Figure 1. Logic Diagram Table 1. Function Table Control Default CLK_SEL CLK_STOP will high--impedance tristate all outputs independent on CLK_STOP Table 2. Pin Configuration ...

Page 3

... Freescale Semiconductor, Inc. Table 4. Absolute Maximum Ratings Symbol Characteristics V Supply Voltage Input Voltage Output Voltage OUT I DC Input Current Output Current OUT T Storage temperature S a. Absolute maximum continuous ratings are those maximum values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability ...

Page 4

... Freescale Semiconductor, Inc. MPC9447 Table 7. DC Characteristics (V = 2.5V ± 5 Symbol Characteristics V Input High Voltage IH V Input Low Voltage IL V Output High Voltage OH V Output Low Voltage OL Z Output Impedance OUT b I Input Current IN I Maximum Quiescent Supply Current CCQ a. The MPC9447 is capable of driving 50Ω transmission lines on the incident edge. Each output drives one 50Ω parallel terminated ...

Page 5

... Freescale Semiconductor, Inc. Figure 3. Output Clock Stop (CLK_STOP) Timing Diagram CCLK0 or CCLK1 CLK_STOP Driving Transmission Lines The MPC9447 clock driver was designed to drive high speed signals in a terminated transmission line environment. To provide the optimum flexibility to the user, the output drivers were designed to exhibit the lowest impedance possible. With an output impedance of 17Ω ...

Page 6

... Freescale Semiconductor, Inc. MPC9447 are reduced such that when the parallel combination is added to the output buffer impedance the line impedance is perfectly matched. MPC9447 OUTPUT 16Ω O BUFFER S 17Ω 16Ω 17Ω + 16Ω k 16Ω = 50Ω k 50Ω 25Ω = 25Ω Figure 6. Optimized Dual Line Termination ...

Page 7

... Freescale Semiconductor, Inc. CCLK Q X Figure 8. Propagation Delay (t t SK(LH) The pin--to--pin skew is defined as the worst case difference in propagation delay between any similar delay path within a single device Figure 9. Output- -to- -Output Skew 100%) P ­ 0 The time from the output controlled edge to the non--controlled ...

Page 8

... Freescale Semiconductor, Inc. MPC9447 D1 D1/2 PIN 1 INDEX E1 D 0.20 C A-- 28X SEATING PLANE C DETAIL θ (S) A1 (L1) DETAIL AD MOTOROLA OUTLINE DIMENSIONS FA SUFFIX LQFP PACKAGE CASE 873A--03 ISSUE B 4X 0.20 H A-- DETAIL G E 32X 0.1 C BASE PLATING METAL 0.20 C A-- SECTION 0.25 GAUGE PLANE L θ ...

Page 9

... Freescale Semiconductor, Inc. TIMING SOLUTIONS NOTES 9 For More Information On This Product, Go to: www.freescale.com MPC9447 MOTOROLA ...

Page 10

... Freescale Semiconductor, Inc. MPC9447 MOTOROLA NOTES 10 For More Information On This Product, Go to: www.freescale.com TIMING SOLUTIONS ...

Page 11

... Freescale Semiconductor, Inc. TIMING SOLUTIONS NOTES 11 For More Information On This Product, Go to: www.freescale.com MPC9447 MOTOROLA ...

Page 12

... Freescale Semiconductor, Inc. MPC9447 Information in this document is provided solely to enable system and software implementers to use Motorola products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...

Related keywords