621NILFT

Overview

The Renesas Electronics Corporation 621NILFT is a low skew clock buffer and fan-out device designed for high-speed digital systems. It features a single-ended input and four LVCMOS outputs, supporting maximum frequencies of up to 200 MHz. The component operates within a supply voltage range of 1.14 V to 1.89 V and is housed in an 8-VFQFPN package with exposed pad. It is rated for commercial temperature ranges from 0°C to 70°C. This integrated circuit functions as a clock distribution element, providing signal integrity and timing alignment for downstream logic components.

Feature Summary

• Single-ended input to four LVCMOS output configuration
• Maximum operating frequency of 200 MHz
• Supply voltage range of 1.14 V to 1.89 V
• Operates within 0°C to 70°C commercial temperature range

Applications

• Clock distribution networks in embedded systems
• Fan-out buffering for high-speed digital interfaces
• Timing synchronization in communication infrastructure equipment

Procurement Notes

The 621NILFT is identified as obsolete and no longer manufactured by Renesas Electronics. Availability is limited to existing stock or surplus channels. Verification of authenticity and storage history is critical due to the end-of-life status. Buyers should confirm the specific package variant and revision level against original design specifications before procurement.

Selection Notes

Designers requiring this component must evaluate alternative sources due to its discontinued status. When selecting replacements, ensure compatibility with the 1.14 V to 1.89 V supply voltage window and 200 MHz frequency requirement. Verify that substitute devices offer equivalent low skew characteristics and fit the 8-VFQFPN footprint or provide a compatible pin-to-pin solution.

Part Context

The 621NILFT belongs to the ICS621 family of clock buffers, originally developed by Integrated Circuit Systems (ICS) and later acquired by Renesas. This series is known for low jitter and skew performance in clock distribution applications. The 'N' suffix typically denotes the VFQFPN package option, distinguishing it from other package variants like SOIC or TSSOP within the same functional family.