CY2305CSXA-1T

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2305CSXA-1T is a Zero Delay Buffer IC manufactured by Cypress Semiconductor Corp, designed for distributing high-speed clock signals. It operates within a supply voltage range of 3V to 3.6V and supports maximum frequencies up to 133.33MHz. The device features a single input driving five outputs with a 1:5 ratio, utilizing LVCMOS/LVTTL inputs and LVCMOS outputs. Packaged in an 8-SOIC (0.154", 3.90mm Width) surface-mount enclosure, it functions within an industrial temperature range of -40°C to 85°C. This component integrates an on-chip PLL to lock to an input clock reference.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero Delay Buffer architecture with one input and five low-skew outputs
• Operating frequency up to 133.33MHz compatible with CPU and PCI bus standards
• Integrated on-chip Phase-Locked Loop (PLL) for clock synchronization
• LVCMOS/LVTTL input compatibility with LVCMOS output drive

Clock Generators, PLLs, Frequency Synthesizers Applications

• PCI bus clock distribution
• SDRAM buffer applications
• Pentium-based system clock generation
• High-speed digital circuit timing synchronization

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'CSXA' against official Infineon or Cypress documentation to confirm lead-free status and RoHS compliance, as datasheet records for this exact suffix vary. Confirm package dimensions match the 8-SOIC specification. Check current product status, as some CY2305 variants are marked obsolete while others remain active. Ensure the supplier provides valid traceability documents for electronic components.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a single reference clock requires fan-out to five destinations with minimal skew. The CY2305CSXA-1T is suitable for designs requiring 3.3V operation and industrial temperature tolerance (-40°C to 85°C). Compare against the CY2305SC-1T if commercial temperature range (0°C to 70°C) suffices, or the CY2309 if nine outputs are needed. Verify input signal levels match LVCMOS/LVTTL requirements.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The CY2305 series serves as an 8-pin variant of the CY2309, which offers nine outputs in a 16-pin package. Both belong to the low-cost 3.3V zero delay buffer family originally developed by Cypress Semiconductor, now part of Infineon Technologies. The -1H suffix variants typically offer higher drive strength compared to standard -1 versions. These devices are engineered to eliminate propagation delay between input and output clocks.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes include CY2305SC-1T for commercial temperature ranges and CY2309C-1H for higher pin-count requirements. Cross-reference with Infineon's updated naming conventions, as Cypress products may carry Infineon branding. Verify that any replacement maintains the 1:5 input-to-output ratio and 8-SOIC footprint.