9ZML1233EKILFT

Overview

The Renesas 9ZML1233EKILFT is a second-generation enhanced performance clock buffer derived from the DB1200ZL architecture. It features 12 differential outputs with LP-HCSL signaling, supporting input frequencies up to 400 MHz. The device operates on a single 3.3V supply (3.135V to 3.465V) and consumes approximately 22 mA of operating current. Packaged in a 72-lead VFQFPN (10.0 x 10.0 mm) format, it offers low phase noise characteristics. Key functional attributes include fixed external feedback for low drift and software-adjustable input-to-output delay per channel.

Feature Summary

• Second-generation DB1200ZL derivative with improved phase jitter performance over the 9ZML1232B
• 12 Differential Outputs utilizing LP-HCSL signaling for reduced board space and component count
• Software-adjustable input-to-output delay on each channel for complex server topology management
• SMBus Write Lockout pin integrated for enhanced device and system security

Applications

• Critical QPI/UPI applications requiring fixed external feedback for low drift
• Complex server topologies requiring precise transport delay management
• High-performance computing systems utilizing PCIe Gen 1–5 compliant clock distribution

Procurement Notes

Verify RoHS compliance status through official manufacturer documentation prior to integration. Confirm moisture sensitivity level (MSL) handling requirements during storage and assembly. Ensure the specific suffix EKILFT matches the required reel packaging quantity of 2500 units. Cross-reference the latest datasheet revision to confirm pin compatibility with legacy designs.

Selection Notes

Select this component when upgrading from the 9ZML1232B to achieve superior phase jitter performance without changing the footprint. The device is suitable for designs requiring independent delay adjustment per output channel. Verify that the application supports the 3.3V nominal supply voltage range of 3.135V to 3.465V. Consider the 72-lead VFQFPN package dimensions (10.0 x 10.0 mm) for PCB layout constraints.

Part Context

This part belongs to the 9ZML1233 series of clock buffers manufactured by Renesas Electronics. It serves as a specialized timing solution for high-speed digital interfaces, specifically targeting server and networking infrastructure where low skew and jitter are critical. The device represents an evolution in the DB1200ZL family, focusing on enhanced security and flexibility for modern processor interconnects.

Replacement Considerations

The 9ZML1233E is the direct pin-compatible upgrade to the 9ZML1232B, offering improved phase jitter. For general-purpose replacement within the same package and functionality, verify if the base model 9ZML1233E meets the specific trailing suffix requirements for tape-and-reel packaging.