CY2305ZC-1T

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2305ZC-1T is a low-cost 3.3V Zero Delay Buffer IC manufactured by Cypress Semiconductor Corp. It operates within a supply voltage range of 3V to 3.6V and supports a maximum frequency of 133.33MHz. The device features one circuit with a 1:5 input-to-output ratio, accepting a clock input and providing five low-skew clock outputs. It utilizes an on-chip PLL that locks to the reference input. The component is housed in an 8-TSSOP package with dimensions of 0.173 inches (4.40mm) width. It is rated for commercial operating temperatures between 0°C and 70°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero-delay buffering architecture utilizing an internal phase-locked loop to eliminate jitter accumulation.
• Single reference input drives five distinct output channels for high-speed clock distribution.
• Low skew performance ensures precise timing alignment across all output clocks.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PCI bus clock buffering
• SDRAM interface synchronization
• High-speed digital system clock distribution

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify RoHS compliance status as sources indicate conflicting data regarding lead-free specifications. Confirm moisture sensitivity level and storage conditions prior to assembly. Ensure the specific suffix matches the required package type and temperature grade. Cross-reference datasheet revisions to confirm pinout compatibility with existing designs.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single-ended clock source requires expansion into five synchronized outputs with minimal delay variation. The 8-pin TSSOP package suits space-constrained surface-mount applications. Verify that the 3.3V logic levels align with the target system voltage requirements and that the 133.33MHz maximum frequency meets the design speed.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY2305/CY2309 family of zero-delay buffers designed for distributing high-speed clocks. The CY2305 serves as the 8-pin variant of the larger CY2309, offering similar functionality in a compact form factor. It is engineered for applications requiring precise clock skew management in synchronous digital systems.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The CY2305SC-1T is a documented substitute offering identical functional characteristics but packaged in an 8-SOIC format instead of TSSOP. Verify footprint compatibility before substitution.