85314AGI-11LFT

Overview

The Renesas 85314AGI-11LFT is a low skew, high-performance clock driver belonging to the HiPerClockS family. It functions as a 1-to-5 differential-to-LVPECL fanout buffer with two selectable differential clock inputs (CLK0/nCLK0 and CLK1/nCLK1). The device supports LVPECL, LVDS, CML, and SSTL input levels, delivering five differential 2.5V/3.3V LVPECL outputs. Key electrical specifications include a maximum output frequency of 2GHz, a maximum output skew of 55ps, and a maximum part-to-part skew of 100ps. It operates within an ambient temperature range of -40°C to 85°C.

Feature Summary

• Five differential 2.5V/3.3V LVPECL outputs
• Two selectable differential clock inputs accepting LVPECL, LVDS, CML, or SSTL
• Maximum output frequency of 2GHz
• Low output skew of 55ps (maximum) and part-to-part skew of 100ps (maximum)

Applications

• High-speed data communication systems requiring precise clock distribution
• Telecommunications infrastructure equipment
• Server and storage backplane clocking

Procurement Notes

Verify RoHS compliance status for the specific manufacturing lot, as legacy documentation may reference older lead-free standards. Confirm package dimensions against SOIC-20 mechanical drawings prior to PCB layout finalization. Check current lifecycle status with the manufacturer to ensure long-term availability for production runs.

Selection Notes

Select this component when a 1-to-5 fanout ratio with LVPECL outputs is required from differential sources like LVDS or CML. Ensure the design accommodates the 2.375V to 3.8V VCC supply range for LVPECL mode. Verify that the 55ps skew specification meets the timing budget of the downstream receivers.

Part Context

This part is part of the ICS85314 series, which includes variants such as the 85314BMI-01LFT and 85314AMI-11. While sharing the core HiPerClockS architecture, suffixes indicate differences in packaging, lead content, and specific input/output configurations. The AGI-11 variant specifically denotes the SOIC-20 package and 1-to-5 LVPECL output configuration.

Replacement Considerations

Direct replacements within the same family include the 85314AMI-11, though pinouts and electrical characteristics must be verified against the specific datasheet revision. Cross-family migration to newer Renesas clock buffers requires careful evaluation of skew and jitter performance.