252MI-52LFT

Overview

The 252MI-52LFT is a VersaClock synthesizer manufactured by Renesas Electronics Corporation. It is housed in an 8-SOIC package and operates within a temperature range of 0°C to 70°C. The device functions as a clock generator with a maximum output frequency of 200 MHz, utilizing a Phase-Locked Loop (PLL) for frequency synthesis. Designed for low-cost applications, it supports input crystal frequencies between 5 MHz and 27 MHz. The component allows for configurable spread spectrum modulation to reduce electromagnetic interference. It is currently listed as obsolete.

Feature Summary

• Field programmable VersaClock synthesizer with One-Time Programmable (OTP) ROM
• Generates output frequencies from 314 kHz to 200 MHz using PLL techniques
• Supports configurable spread spectrum modulation for EMI reduction
• Operates on a single 3.3 V supply voltage

Applications

• Replacing multiple crystals and oscillators to save board space
• Low-cost system timing solutions requiring field programmability
• Applications needing controlled output drive levels

Procurement Notes

This component is officially marked as obsolete by the manufacturer. Availability is restricted, and distributors may not stock this part number. Verification of current lifecycle status and potential end-of-life notices is required before design inclusion. Sourcing should focus on verifying genuine inventory or identifying approved replacement alternatives.

Selection Notes

Select this component only if field programmability via OTP ROM is required for low-volume or prototype runs. Ensure the design accommodates the 8-SOIC package dimensions. Verify that the 3.3 V supply voltage aligns with the system power architecture. Consider that the device is obsolete; alternative fixed-frequency oscillators or newer programmable synthesizers may be more suitable for new designs.

Part Context

The 252MI-52LFT belongs to the VersaClock family of clock synthesizers. This series is designed to replace discrete crystal oscillators, offering flexibility through programmable registers. The specific model provides a single output channel with spread spectrum capabilities, targeting cost-sensitive consumer and industrial electronics where board real estate is limited.

Replacement Considerations

As the 252MI-52LFT is obsolete, direct replacements are not guaranteed. Review Renesas documentation for updated VersaClock models with similar pinouts and electrical characteristics. Verify that any substitute maintains the required 200 MHz maximum frequency and 3.3 V operating voltage.