9ZML1252EKILF

Overview

The Renesas 9ZML1252EKILF is a second-generation differential multiplexer designed for Intel Purley and newer server platforms. It features two differential inputs and twelve Low Power HCSL-compatible outputs, supporting frequencies up to 400 MHz. The device provides configurable low-drift Input-to-Output (I2O) settings for topology tuning and accepts spread spectrum input signals. Packaged in a 72-pin VFQFPN, it operates within a supply voltage range of 3.135 V to 3.465 V and functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Dual differential input architecture with 1:12 output distribution ratio
• Low Power HCSL (LP-HCSL) compatible outputs reduce power consumption and termination requirements
• Configurable low-drift I2O settings allow precise timing tuning for various system topologies
• Supports spread spectrum clocking input for EMI reduction

Applications

• Intel Purley platform clock distribution
• PCI Express Gen 1 through Gen 4 systems
• QuickPath Interconnect (QPI) and Ultra Path Interconnect (UPI) applications

Procurement Notes

Verify the suffix 'KILF' corresponds to the specific tray packaging configuration rather than reel packaging. Confirm RoHS compliance status directly from the manufacturer's documentation prior to procurement. Ensure the ordering quantity aligns with the standard factory pack size of 168 units per tray.

Selection Notes

Select this component when upgrading from legacy devices like the 9ZML1232B while requiring support for higher frequencies up to 400 MHz. The LP-HCSL output type is suitable for designs aiming to minimize power dissipation and external termination resistor counts compared to traditional LVDS or CML buffers.

Part Context

This part belongs to the 9ZML1252E series, representing an evolution of the DB1200ZL specification. It serves as a backward-compatible replacement for previous generation muxes in high-performance computing environments, offering enhanced jitter performance and flexible I/O configuration options for modern server architectures.

Replacement Considerations

The 9ZML1252E series is explicitly documented as backward compatible with the 9ZML1232B. Designers replacing older components should verify that the pinout remains identical to ensure direct board-level substitution without schematic modifications.