8535AGI-31LF

Overview

The Renesas Electronics 8535AGI-31LF is a low skew, high-performance 1-to-4 fanout buffer designed for 3.3V applications. It converts Crystal Oscillator or LVCMOS/LVTTL inputs to four differential 3.3V LVPECL outputs. The device supports selectable single-ended clock or crystal inputs and features an internally synchronized output enable to eliminate runt pulses. Operating within a -40°C to +85°C ambient temperature range, it delivers a maximum output frequency of 266MHz with a typical output skew of 30ps and a maximum propagation delay of 1.75ns.

Feature Summary

• Four differential 3.3V LVPECL outputs
• Selectable LVCMOS/LVTTL CLK or crystal inputs
• Maximum output frequency of 266MHz
• Output skew: 30ps (typical), Part-to-part skew: 200ps (maximum)
• Propagation delay: 1.75ns (maximum)

Applications

• High-performance clock distribution systems
• Data communication equipment requiring low jitter
• Telecommunications infrastructure

Procurement Notes

Verify RoHS compliance status and lead-free package availability through official Renesas documentation. Confirm the specific suffix indicates lead-free construction as per standard industry conventions for this part number series. Ensure the operating temperature range meets system requirements of -40°C to +85°C.

Selection Notes

Select this component when a 1-to-4 conversion from single-ended CMOS/TTL or crystal sources to differential LVPECL is required. It is suitable for designs needing guaranteed skew characteristics and low additive phase jitter (0.057ps typical). Compare against the ICS8535I-11 if legacy compatibility is needed, noting that the AGI variant offers improved specifications.

Part Context

The 8535AGI-31LF belongs to the HiPerClockS family of high-performance clock solutions from Renesas (formerly Integrated Device Technology). It serves as a replacement for older models like the ICS8535I-11, offering enhanced performance metrics such as lower skew and jitter while maintaining compatibility with standard 3.3V power supplies.

Replacement Considerations

The datasheet explicitly states that the 8535AGI-31LF replaces the ICS8535I-11. Verify pinout and electrical parameter compatibility before substitution.