ICS525R-02T

Clock Generators, PLLs, Frequency Synthesizers Overview

The ICS525R-02T is a user-configurable clock generator from the OSCaR family, manufactured by Integrated Device Technology (now Renesas). It replaces crystal oscillators using hardware-set dividers without software. The device accepts a 5–27 MHz crystal or 2–50 MHz clock input and generates outputs up to 250 MHz. It operates on 3.0 V to 5.5 V with low jitter characteristics. Packaged in a 28-pin SSOP, it features internal pull-ups on select pins and supports power-down control.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Hardware-configurable output frequency via R, V, and S divider pins
• Supports crystal inputs (5–27 MHz) and clock inputs (2–50 MHz)
• Maximum output frequency of 250 MHz at 5V supply
• Low absolute clock period jitter (±85 ps typical for -02 variant)

Clock Generators, PLLs, Frequency Synthesizers Applications

• Oscillator replacement in embedded systems
• Clock generation for digital logic and processors
• Frequency synthesis for communication interfaces

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity as the original manufacturer IDT was acquired by Renesas. Confirm RoHS compliance status, noting that non-green parts reached End-of-Life in 2010. Ensure the specific suffix 'T' indicates tape and reel packaging if required for automated assembly processes.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the -02 variant for frequencies exceeding 160 MHz or where lower jitter is critical. The -01 variant is limited to 160 MHz. Verify voltage requirements; maximum output frequency decreases significantly at 3.3V compared to 5V. Ensure input frequency falls within the 2–50 MHz range for clock mode or 5–27 MHz for crystal mode.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the OSCaR (OSCillator Replacement) family designed to eliminate custom oscillator needs. It uses Phase-Locked Loop (PLL) techniques to multiply or divide input frequencies. The device distinguishes itself by requiring no microcontroller or programmer for configuration, relying solely on physical pin connections.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

For applications requiring defined input-to-output timing relationships, consider the ICS527 series instead. For serial interface configuration, the ICS307 is an alternative. Simple multipliers may be replaced by the LOCO family for cost-sensitive, smaller form-factor designs.