252M-46LFT

Overview

The 252M-46LFT is a clock generator and frequency synthesizer manufactured by Renesas Electronics Corporation. It integrates a Phase-Locked Loop (PLL) with a bypass feature to generate precise output frequencies from an input reference. The device is designed for applications requiring low-jitter clock signals, supporting spread spectrum capabilities to reduce electromagnetic interference (EMI). It operates within standard voltage ranges typical for CMOS logic interfaces and is housed in an 8-SOIC package.

Feature Summary

• Integrates a PLL with bypass functionality for flexible clock generation
• Supports spread spectrum modulation to minimize EMI emissions
• Provides stable frequency synthesis for digital system timing

Applications

• Clock distribution in high-speed digital systems
• Timing reference generation for data converters
• System clock sources for embedded processors

Procurement Notes

Verify the specific suffix and package variant against the official Renesas datasheet to ensure compatibility with your design requirements. Confirm RoHS compliance status and moisture sensitivity level (MSL) prior to procurement. Check for any recent product change notices (PCN) or end-of-life announcements that may affect long-term supply availability.

Selection Notes

Select this component when a compact, single-chip solution for frequency synthesis is required. Ensure the input frequency range matches your source clock and that the output jitter specifications meet the sensitivity requirements of your downstream components. Verify power supply constraints and thermal performance for the intended operating environment.

Part Context

This part belongs to the Renesas clock generator family, which offers various solutions for timing needs. It serves as a critical component in synchronizing operations across multiple subsystems in electronic devices, replacing discrete oscillator and divider circuits with a unified programmable or fixed-frequency solution.

Replacement Considerations

Consult the official Renesas replacement matrix for direct pin-to-pin compatible alternatives. Verify electrical parameters such as output swing, current drive capability, and operating temperature range before substituting with other manufacturers' parts.