MPC940LAC

Overview

The MPC940LAC is a clock fanout buffer manufactured by Renesas Electronics Corporation, designed for Intel CPU server applications. It features a single circuit with a 2:18 input-to-output ratio, supporting LVCMOS and LVPECL inputs to generate LVCMOS outputs. The device operates at a maximum frequency of 250MHz with a supply voltage range of 2.375V to 3.465V. It functions within an ambient temperature range of 0°C to 70°C and is housed in a 32-LQFP package (32-TQFP 7x7 mm).

Feature Summary

• Supports 2:18 input-to-output ratio for clock distribution.
• Accepts LVCMOS or LVPECL differential inputs.
• Generates LVCMOS outputs suitable for Intel CPU servers.
• Operates on a 2.375V to 3.465V power supply.

Applications

• Intel CPU Server clock distribution.
• High-frequency clock buffering.
• System timing synchronization.

Procurement Notes

Verify the component status as the source indicates it may be discontinued. Confirm the specific package variant (32-LQFP vs 32-TQFP) matches design requirements. Check for RoHS compliance and moisture sensitivity level (MSL 3) during storage and handling. Ensure the supplier provides valid traceability documentation for this legacy part number.

Selection Notes

Select the MPC940LAC when a 2:18 fanout ratio is required for Intel server architectures. Ensure the system supports LVCMOS/LVPECL inputs and requires LVCMOS outputs. Verify that the 250MHz maximum frequency meets the design specifications. Confirm the operating temperature range of 0°C to 70°C aligns with the environmental constraints.

Part Context

The MPC940LAC belongs to the MPC940 family of clock buffers from Renesas. It is specifically optimized for high-performance computing environments, particularly Intel-based server platforms requiring precise clock distribution with low skew characteristics.

Replacement Considerations

Check for official replacement part numbers from Renesas if the MPC940LAC is discontinued. Verify pin compatibility and electrical parameters before substituting with other fanout buffers.