PCY2305SC-1

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2305SC-1 is a low-cost, 3.3V zero-delay buffer IC manufactured by Cypress Semiconductor Corp. It accepts one reference input and drives five low-skew clock outputs, functioning as a fanout buffer for high-speed clock distribution. The device operates at frequencies up to 133.33MHz with an input-to-output ratio of 1:5. It utilizes an on-chip phase-locked loop (PLL) that locks to the input clock on the REF pin. The component is housed in an 8-SOIC package with dimensions of 0.154 inches (3.90mm) width. It supports LVCMOS/LVTTL inputs and LVCMOS outputs, operating within a supply voltage range of 3V to 3.6V.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates an on-chip PLL to lock to the input clock signal for precise timing alignment.
• Provides zero-delay buffering functionality to minimize propagation delay between input and output clocks.
• Distributes high-speed clock signals with low skew across multiple output channels.

Clock Generators, PLLs, Frequency Synthesizers Applications

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

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix against official datasheets to confirm electrical characteristics and package variations. Confirm RoHS compliance status as legacy versions may differ from current manufacturing standards. Ensure the supplier provides valid traceability documentation for critical embedded systems. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single-ended clock source requires expansion into five synchronized outputs with minimal latency. Verify that the system operates within the specified 3V to 3.6V supply range. Ensure the required frequency does not exceed 133.33MHz. Consider the 8-SOIC package constraints for PCB layout and thermal management requirements during the design phase.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This device belongs to the CY2305/CY2309 series of low-cost 3.3V zero-delay buffers. The CY2305 serves as the 8-pin variant of the larger CY2309, which is available in 16-pin packages. Both devices share similar functional architectures designed for distributing high-speed clocks in embedded systems requiring precise timing synchronization.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate equivalent zero-delay buffers from other manufacturers only if they match the 1:5 ratio, 3.3V operation, and SOIC-8 package constraints.