MPC9447AC

Clock Buffers, Drivers Overview

The MPC9447AC is a 3.3V or 2.5V compatible, 1:9 clock fanout buffer designed for high-performance clock tree applications. It features nine LVCMOS-compatible clock outputs and two selectable, LVCMOS-compatible inputs. The device supports maximum clock frequencies up to 350 MHz with output skews less than 150 ps. It includes synchronous output stop in the logic low state to eliminate output runt pulses and offers high-impedance output control. The component operates within an ambient temperature range of -40°C to +85°C and is housed in 32-lead LQFP packaging.

Clock Buffers, Drivers Feature Summary

• Nine LVCMOS-compatible clock outputs
• Maximum clock frequency of 350 MHz
• Maximum clock skew of 150 ps
• Synchronous output stop eliminates runt pulses

Clock Buffers, Drivers Applications

• Clock distribution in networking equipment
• Telecommunications systems
• Computer applications

Clock Buffers, Drivers Procurement Notes

Verify current availability status as the MPC9447AC may be discontinued or subject to limited supply. Confirm RoHS compliance details and moisture sensitivity level (MSL) before procurement. Check for valid EOL notices or PCN documentation from Renesas Electronics to ensure long-term support viability for production designs.

Clock Buffers, Drivers Selection Notes

Select the MPC9447AC when a 1:9 fanout ratio is required with LVCMOS compatibility at 3.3V or 2.5V. Ensure the design accommodates the 32-lead LQFP package dimensions. Verify that the input signal meets LVCMOS levels and that the load requirements for up to 18 series-terminated clock lines are satisfied within the specified electrical limits.

Clock Buffers, Drivers Part Context

The MPC9447AC belongs to the MPC9447 family of clock buffers. It is functionally similar to the MPC947 but provides specific 1:9 fanout capabilities. The component is part of Renesas Electronics' portfolio for timing solutions, succeeding earlier Motorola designs in this category.

Clock Buffers, Drivers Replacement Considerations

The MPC9447D is a pin and function compatible alternative within the same product family. Verify voltage compatibility and package integrity when substituting.