Texas Instruments

CDCU877BZQLT

CDCU877BZQLT Description

The CDCU877BZQLT is an Application Specific Clock/Timing IC designed by Texas Instruments, featuring a PLL clock driver with a 1.8V supply voltage and packaged in a 52-BGA format. This IC is specifically tailored for memory applications, particularly DDR2 memory systems, ensuring reliable and efficient clock distribution. The CDCU877BZQLT operates within a voltage range of 1.7V to 1.9V and supports a maximum frequency of 400MHz, making it suitable for high-speed memory operations.

CDCU877BZQLT Features

• PLL Integration: The inclusion of a Phase-Locked Loop (PLL) ensures precise clock generation and synchronization, which is crucial for maintaining the integrity of high-speed data transfers in DDR2 memory systems.
• Differential Signaling: The CDCU877BZQLT supports differential signaling for both input and output, which helps in reducing electromagnetic interference (EMI) and improving signal integrity over long distances.
• High Input-to-Output Ratio: With a 1:10 input-to-output ratio, this IC can efficiently distribute clock signals to multiple memory modules, enhancing the overall system performance.
• Surface Mount Technology: The surface mount mounting type allows for compact and reliable integration into modern electronic systems, facilitating high-density PCB designs.
• Compliance and Safety: The CDCU877BZQLT is REACH unaffected and RoHS3 compliant, ensuring it meets international standards for environmental safety and restricted hazardous substances.
• Moisture Sensitivity Level: With an MSL rating of 2 (1 Year), the IC is protected against moisture damage during storage and handling, which is essential for maintaining product reliability.

CDCU877BZQLT Applications

The CDCU877BZQLT is ideally suited for applications requiring precise clock distribution and synchronization in DDR2 memory systems. Its high-frequency capability and differential signaling make it particularly useful in:

• High-Speed Memory Systems: Ideal for driving clock signals in DDR2 memory modules, ensuring synchronized data transfers and minimizing latency.
• Data Centers and Servers: Provides reliable clock distribution in server architectures where high-speed memory access is critical.
• Telecommunications Equipment: Ensures accurate clocking in telecom systems that require robust and efficient data handling.
• Industrial Control Systems: Suitable for industrial applications where precise timing and reliability are paramount.

Conclusion of CDCU877BZQLT

The CDCU877BZQLT from Texas Instruments stands out as a robust and reliable solution for DDR2 memory clock distribution. Its integrated PLL, differential signaling, and high input-to-output ratio make it a superior choice for applications demanding high-speed and precise clocking. While the product is now obsolete, its legacy in the electronics industry remains significant, especially for systems designed before its discontinuation. For new designs, engineers may need to seek alternatives, but the CDCU877BZQLT continues to serve as a benchmark for performance and reliability in clock distribution ICs.