251M-33LF

Overview

The 251M-33LF is a VersaClock 3 clock synthesizer and jitter cleaner manufactured by Renesas Electronics. It operates within a frequency range of 314kHz to 200MHz using an internal Phase-Locked Loop (PLL). The device supports spread spectrum clock generation capabilities for noise reduction. It functions on a supply voltage ranging from 3.15V to 3.45V. The component is housed in an 8-SOIC package with a width of 3.90mm. It is rated for operation across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a PLL-based clock synthesizer and jitter cleaning function
• Supports spread spectrum clock generation for electromagnetic interference reduction
• Operates within a wide frequency range up to 200MHz
• Designed for low-noise performance in timing applications

Applications

• Automotive hybrid, electric, and powertrain systems
• Industrial equipment requiring precise clock synchronization
• Consumer electronics utilizing high-speed digital interfaces

Procurement Notes

Verify the obsolete status and end-of-life notification details before procurement planning. Confirm availability through authorized distributors or approved substitute components. Ensure compliance with RoHS3 specifications and check for any recent process change notices that may affect assembly or sourcing requirements.

Selection Notes

Select this component only if a fixed-frequency output solution compatible with the VersaClock family is required. Consider the 8-SOIC package constraints and voltage operating limits. Evaluate alternative active parts if long-term supply continuity is critical, as this specific model is no longer manufactured.

Part Context

This part belongs to the VersaClock 3 series, designed for precision timing applications. It serves as a clock generator and jitter cleaner for systems demanding stable frequency outputs. The series is known for integrating PLL functionality into compact packages suitable for space-constrained electronic designs.

Replacement Considerations

The manufacturer recommends the 5L35021B-000NDGI as a preferred replacement. Verify pin compatibility and electrical specifications when transitioning to substitute components.