CSPT857DPAG

Application Specific Clock/Timing Overview

The CSPT857DPAG is a single-circuit clock buffer and driver manufactured by Renesas Electronics Corporation. Designed for memory, DDR, and SDRAM applications, it features a 1:10 input-to-output ratio with differential inputs and outputs. The device operates within a supply voltage range of 2.3V to 2.7V and supports maximum frequencies up to 220MHz. It incorporates an internal Phase-Locked Loop (PLL) and is housed in a 48-TSSOP surface-mount package. The component functions within an operating temperature range of 0°C to 70°C.

Application Specific Clock/Timing Feature Summary

• Integrated PLL for zero-delay buffering in memory systems
• Differential input and output signaling
• 1:10 fan-out distribution capability
• Maximum operating frequency of 220MHz

Application Specific Clock/Timing Applications

• DDR memory interface clock distribution
• SDRAM system clock buffering
• High-speed digital logic clock routing

Application Specific Clock/Timing Procurement Notes

Verify the specific suffix 'PAG' against the manufacturer's current documentation to confirm package dimensions and lead finish specifications. Confirm RoHS compliance status through official datasheets as regulatory requirements may vary by production batch. Check for end-of-life notices or discontinuance announcements from Renesas Electronics prior to procurement planning.

Application Specific Clock/Timing Selection Notes

Select this component when a single-channel, 1:10 differential clock buffer with integrated PLL is required for DDR or SDRAM architectures. Ensure the design environment supports the specified 2.3V to 2.7V supply voltage range. Verify that the 48-TSSOP package footprint aligns with the PCB layout constraints and thermal management requirements for the target application temperature range.

Application Specific Clock/Timing Part Context

This part belongs to the CSPT857 series of clock drivers and buffers. It is functionally related to variants such as CSPT857CPAG and CSPT857CBVG, which offer different packaging options like TFBGA while maintaining similar electrical characteristics. The series is specifically engineered for high-performance memory subsystem timing requirements.

Application Specific Clock/Timing Replacement Considerations

Consult the official Renesas cross-reference guide for verified substitutes. Potential alternatives include other members of the CSPT857 family with compatible pinouts or updated generations with enhanced performance metrics. Verify electrical compatibility before substitution.