551SDCGI8

Overview

The 551SDCGI8 is a low skew clock buffer manufactured by Renesas Electronics, belonging to the 551S series. It functions as a 1-to-4 fan-out buffer designed for distributing clock signals with minimal timing distortion. The device supports a maximum input frequency of 200 MHz and operates within a supply voltage range of 1.71 V to 3.465 V. Key electrical specifications include a maximum propagation delay of 4.5 ns and a typical RMS jitter performance of 50 fs. It features four outputs and is rated for an extended industrial operating temperature range from -40°C to +105°C.

Feature Summary

• Low Skew Performance: Achieves 50 fs RMS jitter for precise clock distribution.
• High Frequency Operation: Supports maximum input frequencies up to 200 MHz.
• Wide Voltage Range: Operates on a single supply voltage between 1.71 V and 3.465 V.
• Industrial Temperature Rating: Certified for operation from -40°C to +105°C.

Applications

• Clock distribution in high-speed digital systems
• Fan-out buffering for memory interfaces
• Signal integrity optimization in telecommunications equipment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific packaging variants such as cut tape or reel options. Ensure the ordering suffix matches the required package type and quantity constraints defined by the supplier.

Selection Notes

Select this component when low jitter and wide voltage compatibility are required for 200 MHz clock networks. Compare against the 553SDCGI8 if different series characteristics are needed. Verify that the 8-SOIC package dimensions fit the target PCB layout and thermal requirements.

Part Context

This part belongs to the Renesas 551S family of clock buffers. It shares functional similarities with other members like the 651SDCGI8 but differs in specific series parameters. The 'GI8' suffix typically denotes the 8-SOIC surface-mount package configuration.

Replacement Considerations

The 551SDCGI is listed as a parameter-equivalent alternative available in tube packaging. Verify pinout compatibility and package dimensions before substitution.