252PMLF

Overview

The 252PMLF is a single-output, field-programmable clock synthesizer belonging to the VersaClock family. Manufactured by Renesas Electronics (formerly IDT), it utilizes Phase-Locked Loop techniques to generate output frequencies ranging from 314 kHz to 200 MHz. The device operates on a 3.3 V supply and supports input crystal frequencies between 5 MHz and 27 MHz. It features configurable spread spectrum modulation for EMI reduction and includes four addressable registers for configuration via One-Time Programmable ROM.

Feature Summary

• Single-output clock synthesizer with frequency range up to 200 MHz
• Field programmability using VersaClock software and OTP ROM
• Configurable spread spectrum modulation to reduce EMI
• Power-down feature that tri-states outputs and disables PLLs

Applications

• Replacing multiple crystals and oscillators in embedded systems
• Generating precise clock signals for digital circuits
• EMI reduction in high-speed data communication interfaces

Part Context

The 252PMLF is part of the VersaClock II series, originally developed by Integrated Device Technology (IDT) before its acquisition by Renesas Electronics. It serves as a low-cost solution for system designers requiring flexible clock generation without the need for multiple discrete components.

Replacement Considerations

The 251PMILF is listed as an alternative product within the same VersaClock family. Both devices share similar packaging and functional characteristics, though specific parameter verification against the datasheet is required for direct substitution.