9ZML1256AKILF

Overview

The Renesas 9ZML1256AKILF is a PCIe clock multiplexer featuring a low-noise PLL and bypass mode. It accepts two differential HCSL inputs and provides twelve differential LP-HCSL outputs with integrated 85Ω termination, eliminating external resistors. The device supports PCIe Gen1–7 compliance in both PLL and bypass modes, accommodating SRIS and SRNS architectures. Operating on a 3.3V supply (3.135V to 3.465V), it handles input frequencies up to 200MHz and output frequencies up to 400MHz within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates 85Ω output termination for direct connection to transmission lines
• Supports PCIe Gen1–7 compliant PLL and Bypass modes
• Features selectable SMBus addresses and write protection
• Provides hardware control via 12 individual OE# pins

Applications

• PCIe SRIS and SRNS clocking architectures
• UPI/QPI interface clock distribution
• System security applications requiring SMBus write lock

Procurement Notes

Verify the package designation matches the required footprint. The suffix 'KILF' indicates a tape-and-reel packaging format containing 2500 units per reel. Confirm moisture sensitivity level requirements for the assembly process. Ensure the ordering suffix aligns with the specific packaging needs of the production line.

Selection Notes

Select this component when designing systems requiring jitter cleaning for PCIe Gen1–7 signals. The integrated 85Ω termination reduces bill-of-materials by removing discrete resistors. Choose the PLL mode for low phase noise performance or bypass mode for minimal latency. Verify that the 72-VFQFPN package dimensions fit the available board space constraints.

Part Context

This part belongs to the 9ZML1256 series, representing a second-generation enhanced DB1200ZL derivative. It is designed for complex clocking topologies including SRIS and SRNS. The device family offers flexibility through configurable PLL bandwidth and bypass options to minimize phase jitter for specific application requirements.

Replacement Considerations

The 9ZML1256AKILFT is the identical functional equivalent packaged in a reel instead of a tray.