CDC2509PWR

Overview

The CDC2509PWR is a 1-to-9 PLL clock driver manufactured by Texas Instruments, housed in a 24-TSSOP package. It operates within a supply voltage range of 3V to 3.6V and supports a maximum output frequency of 140MHz. The device functions as a memory DRAM DIMM clock buffer/driver with multiplexer capabilities. It features a single circuit configuration with a 1:9 input-to-output ratio. The component is designed for surface mount installation and complies with RoHS3 standards.

Feature Summary

• Integrates a phase-locked loop (PLL) for precise clock signal generation and distribution
• Provides nine differential or single-ended outputs from a single input source
• Supports low-voltage operation suitable for modern memory subsystems

Applications

• DRAM DIMM clock buffering and distribution
• High-speed memory interface synchronization
• System-level clock tree generation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the component meets the required environmental operating temperature range for the target application. Cross-reference the part number with official Texas Instruments documentation to validate authenticity and avoid counterfeit risks during sourcing.

Selection Notes

Select this component when a single clock source requires expansion into nine distinct paths for memory arrays. Confirm that the system power supply aligns with the 3V to 3.6V operational window. Evaluate the thermal performance requirements associated with the TSSOP-24 package for the intended PCB layout density.

Part Context

This device belongs to the Texas Instruments CDC2509 family of clock drivers. It shares functional similarities with variants such as the CDC2509CPWR and CDC2509PW, differing primarily in manufacturing revisions or specific packaging configurations. The series is designed for high-performance clock distribution in digital systems.

Replacement Considerations

The CDC2509PW serves as a direct equivalent variant within the same product family. Verify pin compatibility and electrical parameters before substitution. Other members of the CDC2509 series may offer alternative packaging options but require validation of specific device characteristics.