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ASM2I99447

Part Number	ASM2I99447
Manufacturer	Alliance Semiconductor
Description	3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer
Published	Feb 6, 2016
Detailed Description	May 2005 rev 0.3 ASM2I99447 3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer Features 9 LVCMOS Compatible Clock Outputs 2...
Datasheet	ASM2I99447 PDF File

Overview

May 2005 rev 0.
3 ASM2I99447 3.
3V/2.
5V 1:9 LVCMOS Clock Fanout Buffer Features 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 and TQFP Packaging Supports Clock Distribution in Networking, Telecommunications and Computer Applications Pin and Function Compatible to MPC947 and MPC9447 Functional Description The ASM2I99447 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.
ASM2I99447 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 50Ω terminated transmission lines on the incident edge: each is capable of driving either one parallel terminated or two series terminated transmission lines.
Two selectable independent LVCMOS compatible clock inputs are available, providing support of redundant clock source systems.
The ASM2I99447 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.
5V or 3.
3V power supply and an ambient temperature range of –40°C to +85°C.
The ASM2I99447 is pin and function compatible but performance enhanced to ...

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