CY22381SXI

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY22381SXI is a programmable clock generator manufactured by Cypress Semiconductor Corp. It features three integrated phase-locked loops (PLLs) driving three configurable CMOS outputs within an 8-pin SOIC package. The device operates on a 3.3 V supply voltage, with a specified range of 3.135 V to 3.465 V. It supports input frequencies from 8–30 MHz via crystal or 1–166 MHz via external clock signal. Key specifications include ultra-wide divide counters and low-jitter output capabilities.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Three integrated phase-locked loops for independent clock generation
• Flash programmability allowing field reconfiguration without erasure
• Supports 8–30 MHz crystal or 1–166 MHz external clock inputs
• Configurable power management including Shutdown, OE, and Suspend modes

Clock Generators, PLLs, Frequency Synthesizers Applications

• Networking equipment clock distribution
• Telecommunication system timing
• Datacom interface synchronization

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the manufacturer origin as Cypress Semiconductor Corp or its successor Infineon Technologies. Confirm the specific suffix indicates the standard SOIC package variant. Check RoHS compliance status as some variants in this family may differ. Ensure the programming tool compatibility matches the CyClocks RT support requirement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when three independent programmable clocks are required in a compact 8-pin footprint. Verify that the input source matches the supported crystal or LVTTL ranges. Consider the operating temperature range if deployed in industrial environments. Ensure the design accommodates the 3.3 V power supply constraints and current consumption profiles.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY22381 family of general-purpose FLASH programmable clock generators. It is designed to replace fixed-frequency oscillators in systems requiring flexible frequency planning. The series includes variants with different lead finishes and temperature ratings, such as the CY223811 with NiPdAu leads.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes include other CY22381 family members like CY22381FXI or CY22381SC-132, provided pinout and electrical parameters align. Cross-reference with Infineon Technologies documentation for updated availability and equivalent part numbers.