9DMU0441AKILFT

Overview

The 9DMU0441AKILFT is a 2:4 clock multiplexer from the Renesas IDT PCIe Gen1-2-3 family. It operates at 1.8V with LP-HCSL outputs featuring integrated 100-ohm terminations for direct transmission line connection. The device supports asynchronous or glitch-free switching, spread spectrum compatibility for EMI reduction, and individual output enables for power management. Operating frequency ranges from 1 MHz to 200 MHz within a 4x4 mm 24-pin VFQFPN package.

Feature Summary

• Integrated LP-HCSL outputs with built-in 100-ohm termination resistors eliminate external components
• Selectable asynchronous or glitch-free switching modes ensure stable signal transitions
• Spread spectrum capability supports electromagnetic interference reduction strategies
• Individual output enable pins facilitate precise system-level power management

Applications

• PCI Express Gen1, Gen2, and Gen3 clock distribution systems
• High-speed digital interconnects requiring low skew clock signals
• Systems utilizing spread spectrum modulation for compliance
• Multi-source clock selection in server and networking platforms

Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm package type and temperature range. Ensure the ordering code matches the required switching mode configuration. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm lead times directly with the supplier as production cycles may vary.

Selection Notes

Select this component when a 2-input to 4-output clock mux is required for PCIe applications. The integrated termination simplifies PCB layout compared to standard HCSL devices. Choose between asynchronous and glitch-free modes based on system startup requirements. Verify that the 1.8V supply voltage aligns with the target platform's power rails.

Part Context

This device belongs to the IDT PCIe clock multiplexer family designed for system-on-chip integration. It replaces discrete resistor networks by providing on-chip termination. The series targets high-performance computing environments where board space and power consumption are critical constraints for clock distribution networks.

Replacement Considerations

Consult official substitution guides for equivalent parts within the IDT portfolio. Verify pinout compatibility before replacing existing designs. Ensure the replacement supports the same PCIe generation standards and operating voltage levels.