CY22381SC-154

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY22381SC-154 is a programmable Flash clock generator manufactured by Cypress Semiconductor Corp. It operates on a 3.3 V power supply within the range of 3.135V to 3.465V and supports a maximum frequency of 200MHz. The device utilizes an 8-SOIC package with a width of 3.90mm and functions within a temperature range of 0°C to 70°C. It features one circuit with a 1:3 input-to-output ratio, accepting LVTTL or crystal inputs and providing CMOS outputs. The component includes PLL bypass capabilities and is classified as a fanout distribution IC.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Flash programmability allows for field configuration without external memory devices.
• Integrated phase-locked loops provide low-jitter, high-accuracy clock outputs.
• Supports both internal reference oscillators driven by crystals and external clock signals.

Clock Generators, PLLs, Frequency Synthesizers Applications

• Networking equipment requiring precise clock distribution
• Telecommunication systems utilizing programmable frequency synthesis
• Datacom applications needing configurable clock generation

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific suffix matches the required pinout and electrical specifications. Check for end-of-life status as some variants may be discontinued. Ensure storage conditions comply with moisture sensitivity level requirements prior to assembly. Request original datasheets to validate technical parameters against current design needs.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single-chip solution for programmable clock generation is required in compact surface-mount designs. Consider the 8-pin SOIC package constraints for PCB layout. Evaluate the need for Flash programmability versus fixed-frequency alternatives. Assess power supply stability within the specified 3.3V range. Verify compatibility with system input frequencies ranging from crystal references to external clocks.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The CY22381 series represents a family of general-purpose programmable clock generators designed for networking and telecommunication markets. This specific model variant falls under the broader CY22381 product line, which integrates multiple phase-locked loops into a small footprint. The series is engineered to replace discrete clock components, simplifying board design while maintaining signal integrity standards for high-speed digital interfaces.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes include CY22381FC and CY22381SC-132. Verify package compatibility and electrical parameter alignment before substitution. Note that CY22381FC is listed as discontinued. Cross-reference pinouts and programming interfaces to ensure functional equivalence in existing designs.