2304NZLPGGI

Overview

The 2304NZLPGGI is a high-performance, low skew, low jitter 1:4 LVCMOS clock buffer manufactured by Renesas Electronics Corporation. It supports a synchronous glitch-free Output Enable function to eliminate incorrect output clock cycles during enable or disable operations. The device operates on a 1.8V to 3.3V power supply and features an industrial temperature range from -40°C to +85°C. It is packaged in an 8-pin TSSOP with a 0.65mm pitch. Key electrical parameters include a maximum input frequency of 200 MHz, a typical propagation delay of 1.7 ns at 3.3V, and a maximum output-to-output skew of 40 ps.

Feature Summary

• Low output skew of 40 ps maximum between any two outputs with equal loading
• Glitch-free Output Enable function for synchronous control of clock outputs
• Supports 1.8V, 2.5V, and 3.3V power supplies with low operating supply current (12 mA typ at 3.3V)
• Industrial temperature range (-40°C to +85°C) and Pb-Free RoHS compliant packaging

Applications

• PCI/PCI-X bus architectures
• Networking equipment clock distribution
• High-speed digital systems requiring low jitter clock buffering

Procurement Notes

Verify the package type matches the required PCB footprint, as the 2304NZL series is available in DFN, SOIC, and TSSOP variants. Confirm that the specific ordering suffix 'PGGI' corresponds to the 8-pin TSSOP tube packaging. Ensure the design accounts for identical trace geometries and loads on all four outputs to maintain the specified 40 ps skew performance.

Selection Notes

Select this component when a 1:4 LVCMOS clock buffer with low skew and glitch-free enable functionality is required. The device supports input frequencies up to 200 MHz and additive phase jitter as low as 30 fs RMS at 3.3V. Consider board layout constraints, as achieving minimum skew requires identical terminations and trace lengths for all four outputs.

Part Context

The 2304NZLPGGI belongs to the 2304NZL family of high-performance clock buffers. This family includes variants with different package options such as the 2304NZLDCGI (SOIC) and 2304NZLNTGI (DFN). All variants share the same core electrical specifications and functionality, differing primarily in physical package dimensions and carrier types.

Replacement Considerations

Direct replacements within the same family include 2304NZLDCGI (SOIC) and 2304NZLNTGI (DFN), provided the package form factor is compatible with the existing PCB layout. Other pin-compatible alternatives should be verified against the datasheet for matching electrical characteristics and package dimensions.

FAQ

What is the maximum input frequency supported by the 2304NZL?

The 2304NZL supports a maximum input frequency of 200 MHz.

How does the Output Enable function work?

The Output Enable (OE) pin controls the clock outputs synchronously. When OE is HIGH, the outputs are enabled. When OE is LOW, the outputs are forced to logic LOW. The function is glitch-free to prevent incorrect clock cycles during state transitions.

What is the typical propagation delay at 3.3V?

At a supply voltage of 3.3V, the typical propagation delay is 1.7 ns, with a maximum of 2.1 ns.