9ZML1253EKILFT

Overview

The Renesas 9ZML1253EKILFT is a clock buffer within the 9ZML1253E series, designed for high-performance timing applications. It features 12 HCSL outputs derived from differential inputs, supporting maximum input frequencies up to 400 MHz. The device operates on a single 3.3V supply (3.135V to 3.465V) and exhibits a maximum propagation delay of 3.6 ns. Packaged in a 72-lead VFQFPN format, it is characterized by low phase noise performance and an operating temperature range spanning from -40°C to +85°C.

Feature Summary

• 12-output HCSL clock distribution with differential input capability
• Supports input frequencies up to 400 MHz with 3.6 ns max propagation delay
• Low phase noise design optimized for signal integrity
• Operates within 3.135V to 3.465V supply voltage range

Applications

• PCI Express (PCIe) clock distribution networks
• Intel QuickPath Interconnect (QPI) systems
• High-speed data converter clocking
• Server and storage system timing architectures

Procurement Notes

Verify the specific suffix 'EKILFT' against official Renesas documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure that the ordering quantity aligns with the manufacturer's standard reel size requirements. Cross-reference the full part number with current datasheets to validate any recent manufacturing changes or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when a 1:12 fan-out solution with HCSL outputs is required for PCIe or QPI interfaces. Compare the 3.6 ns propagation delay against system timing budgets. Verify that the 72-pin VFQFPN footprint matches the PCB layout constraints. Consider the 9ZML1252EKILFT if jitter cleaning via PLL bypass mode is not necessary, as it offers similar electrical characteristics without the mux derivation logic.

Part Context

This part belongs to the 9ZML1253E family of clock buffers, which are derivatives of the DB1200ZL architecture. The series is engineered for complex processor clocking topologies, providing flexibility through multiple output banks. It serves as a key component in multi-lane serial link architectures where low jitter and precise skew management are critical for maintaining data integrity at high speeds.

Replacement Considerations

The 9ZML1252EKILFT is a related variant offering similar 12-output HCSL performance but lacks the multiplexer derivation feature. Verify pin-to-pin compatibility and functional equivalence regarding input selection logic before substituting. Consult the official Renesas cross-reference guide for any other direct replacements within the 9ZML series.