551MILF

Overview

The Renesas Electronics 551MILF is a single-input to four-output clock buffer belonging to the ClockBlocks family. It operates within a supply voltage range of 3 V to 5.5 V and supports a maximum input frequency of 160 MHz. The device features a maximum propagation delay of 8 ns and draws 18 mA in operating current. Packaged in an SOIC-8 surface-mount format, it functions across an extended temperature range from -40 °C to +85 °C.

Feature Summary

• Provides four non-inverting outputs from a single clock input
• Utilizes advanced low-power CMOS process technology
• Offers tri-state output capability via an enable mode

Applications

• Networking clock distribution systems
• General-purpose digital circuit timing synchronization
• Low-cost high-speed buffering for embedded applications

Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required voltage levels and package dimensions. Confirm RoHS compliance status and lead-free certification details prior to integration. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability. Ensure that the selected variant matches the intended thermal and electrical specifications for the target environment.

Selection Notes

Select this component when a cost-effective solution for distributing a single clock signal to multiple destinations is required. It is suitable for designs needing up to four buffered outputs without complex programmability. Consider the 8 ns propagation delay and 160 MHz frequency limit to ensure they meet system timing requirements. Evaluate the SOIC-8 footprint constraints against available PCB real estate.

Part Context

This device is part of the Renesas 551 series, designed as a compact and economical clock buffer. It serves as a foundational component for basic clock distribution tasks within the broader ClockBlocks portfolio. The series focuses on providing reliable signal integrity for standard digital logic applications without the overhead of phase-locked loops or complex jitter reduction circuits.

Replacement Considerations

Consult official documentation for direct substitutes. The 552-02B is identified as a monolithic dual version offering similar functionality in a 20-pin QSOP package.