ICS525R-02IT

Clock Generators, PLLs, Frequency Synthesizers Overview

The ICS525R-02IT is an industrial-grade, user-configurable clock generator from the OSCaR family, manufactured by Integrated Device Technology (now Renesas). It operates in a -40°C to +85°C temperature range within a 28-pin SSOP package. The device generates high-frequency clocks up to 250 MHz using a Phase-Locked Loop (PLL) with a standard fundamental mode crystal or external clock input. Configuration is achieved via hardware pins for reference, VCO, and output dividers, eliminating the need for software or programmers. It supports supply voltages of 3.0V to 5.5V.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• User-configurable frequency generation via hardware divider pins without software
• Maximum output frequency of 250 MHz at 5V supply
• Supports crystal inputs (5-27 MHz) or direct clock inputs (2-50 MHz)
• Industrial temperature rating (-40°C to +85°C)

Clock Generators, PLLs, Frequency Synthesizers Applications

• Oscillator replacement in embedded systems
• High-frequency clock generation for digital circuits
• Systems requiring precise frequency locking to an input reference

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity as this part may be obsolete or end-of-life. Confirm RoHS compliance status, as non-green parts had an EOL date of May 13, 2010. Ensure the 'IT' suffix correctly denotes the industrial temperature range and tape-and-reel packaging variant specified in the ordering information.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the ICS525R-02IT over the ICS525-01 if output frequencies exceeding 160 MHz are required. Verify that the application does not require defined input-to-output phase relationships, as this device does not guarantee them; use the ICS527 series for zero-delay applications. Ensure the design accommodates the 28-pin SSOP footprint and necessary decoupling capacitors.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the OSCaR (OSCillator Replacement) family designed to replace traditional crystal oscillators. While originally produced by Integrated Device Technology (IDT), the brand is now associated with Renesas Electronics Corporation following acquisitions. The 'R' in the model number typically indicates a specific revision or package variant within the IDT product line.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult current Renesas or IDT catalogs for modern equivalents such as the VersaClock series or FemtoClock NG devices for new designs.

Clock Generators, PLLs, Frequency Synthesizers FAQ

How is the output frequency determined?

The output frequency is determined by setting the binary values on the Reference Divider (R0-R6), VCO Divider (V0-V8), and Output Divider (S0-S2) pins. Users ground specific pins to set the desired divider ratios.

What is the maximum output frequency for the ICS525-02?

The ICS525-02 supports maximum output frequencies up to 250 MHz when operating at a 5V supply voltage.

Does this device guarantee input-to-output timing skew?

No. The datasheet explicitly states that input-to-output skew and jitter are not defined nor guaranteed. For applications requiring defined timing, the ICS527-01 is recommended.