SY73551LZG

Clock Buffers, Drivers Overview

The SY73551LZG is a high-speed 1:4 LVCMOS/LVTTL fanout buffer from Micrel’s Precision Edge line. It reproduces an input signal across four non-inverting outputs with less than 250ps skew and 63fs RMS additive phase jitter. Operating on a 3.3V ±10% supply, it supports frequencies up to 160MHz. The device features an output enable function for tri-stating signals and operates within the industrial temperature range of -40°C to +85°C in an 8-pin SOIC package.

Clock Buffers, Drivers Feature Summary

• Accepts LVCMOS and LVTTL input levels and provides four buffered LVCMOS/LVTTL outputs
• Maximum operating frequency of 160MHz with propagation delay of 8ns max
• Ultra-low jitter performance at 63fs RMS and low output-to-output skew of 250ps max
• Output enable pin allows tri-stating of all outputs when driven low

Clock Buffers, Drivers Applications

• Clock distribution networks
• High-performance personal computers
• Communications systems
• Parallel processor-based systems

Clock Buffers, Drivers Procurement Notes

Verify that the component is sourced as an original Micrel product. Confirm the package type matches the 8-pin SOIC specification and check lead finish details (NiPdAu) against the datasheet requirements. Ensure the ordering suffix ZG corresponds to the correct industrial temperature range and Pb-free status.

Clock Buffers, Drivers Selection Notes

Select this component when a single-ended clock source requires expansion into four distinct paths with minimal timing distortion. It is suitable for applications requiring strict adherence to LVCMOS or LVTTL voltage standards. Consider the 160MHz maximum frequency limit and the specific 3.3V power supply requirement during circuit design.

Clock Buffers, Drivers Part Context

The SY73551LZG belongs to Micrel’s Precision Edge series, which focuses on high-performance clocking solutions. This specific part number indicates the standard tape-and-reel or tube packaging variant available in the 8-pin SOIC format. It serves as a critical interface for synchronizing multiple components in digital logic circuits.

Clock Buffers, Drivers Replacement Considerations

Direct replacements must match the 1:4 fanout configuration, LVCMOS/LVTTL compatibility, and 3.3V operation. Verify that alternative buffers offer comparable skew and jitter specifications to maintain signal integrity in high-speed designs.