621MILF

Overview

The Renesas Electronics Corporation 621MILF is a low skew 1:4 clock buffer IC belonging to the 621MILF series. It operates within a supply voltage range of 1.14 V to 1.89 V and supports maximum input and output frequencies of 200 MHz. The device features a maximum propagation delay of 5 ns and consumes 50 mA of operating current. Designed for surface mount installation, it is housed in an SOIC-8 package with dimensions of 0.154 inches (3.90 mm) width. The component functions as a fan-out buffer for clock distribution applications.

Feature Summary

• Low skew 1:4 clock buffer architecture
• Maximum operating frequency of 200 MHz
• Supply voltage range from 1.14 V to 1.89 V
• SOIC-8 surface mount package

Applications

• Clock distribution networks
• Fan-out buffering for digital systems
• Timing signal routing in embedded electronics

Procurement Notes

The 621MILF is classified as obsolete and no longer manufactured by Renesas Electronics Corporation. Public records indicate End-of-Life (EOL) status effective May 7, 2019. Verification of current availability requires checking secondary market distributors or surplus inventory providers, as direct procurement from the manufacturer is not possible.

Selection Notes

Designers should consider the obsolete status when selecting this component for new products. Alternative solutions within the Renesas portfolio or compatible third-party clock buffers should be evaluated for long-term supply stability. Verify that the 1.14 V to 1.89 V supply voltage range aligns with the target system power rails before integration.

Part Context

This part belongs to the ICS621 family of clock buffers. The suffix 'FT' typically denotes specific packaging configurations such as tape and reel or cut tape, while 'LF' indicates lead-free compliance. The base model number 621M identifies the core functional specifications shared across the series variants.

Replacement Considerations

Public data lists the 621SDCGI as a similar replacement option from Renesas Electronics Corporation. Users should verify pin compatibility and electrical parameters against the original datasheet before substituting.