Renesas Electronics Corporation

CSPUA877BNLGI

CSPUA877BNLGI Description

The CSPUA877BNLGI is an Application Specific Clock/Timing IC designed by Renesas Electronics Corporation, a leading manufacturer in the electronics industry. This IC serves as a clock driver, primarily used for memory applications, specifically DDR2 SDRAM. It features a 1:10 input-to-output ratio, making it highly efficient in distributing clock signals across multiple devices. The CSPUA877BNLGI supports differential signaling for both input and output, ensuring high signal integrity and reduced electromagnetic interference (EMI).

This IC is designed for surface mount applications, which is beneficial for compact and high-density circuit designs. It operates within a supply voltage range of 1.7V to 1.9V, making it suitable for low-power applications. The maximum operating frequency of 410MHz ensures it can handle high-speed data transfers, which is crucial for modern DDR2 memory systems. The inclusion of a Phase-Locked Loop (PLL) further enhances its performance by stabilizing the clock signal and reducing jitter.

CSPUA877BNLGI Features

• Main Purpose: Memory, DDR2, SDRAM
• Input/Output Ratio: 1:10, providing efficient clock distribution
• Differential Signaling: Yes for both input and output, ensuring high signal integrity and reduced EMI
• Mounting Type: Surface Mount, ideal for compact designs
• Product Status: Obsolete, though still valuable for legacy systems
• PLL: Yes, for stable clock signal and reduced jitter
• Input: Clock, CMOS, compatible with various clock sources
• Voltage - Supply: 1.7V to 1.9V, suitable for low-power applications
• Output: Clock, ensuring synchronized operation of memory devices
• Manufacturer: Renesas Electronics Corporation, a trusted name in the industry
• Package: Tray, facilitating easy handling and integration
• Number of Circuits: 1, focused on a single, reliable clock distribution path
• Frequency - Max: 410MHz, supporting high-speed data transfers

CSPUA877BNLGI Applications

The CSPUA877BNLGI is ideal for applications requiring high-speed, low-power clock distribution, particularly in DDR2 SDRAM memory systems. Its differential signaling and PLL features make it suitable for environments where signal integrity and stability are critical. Some specific use cases include:

• Memory Modules: Enhancing the performance of DDR2 memory modules by providing a stable and efficient clock signal.
• Motherboards: Distributing clock signals to various memory slots, ensuring synchronized operation.
• Embedded Systems: Providing a reliable clock source for memory in compact, low-power embedded devices.
• Networking Equipment: Ensuring high-speed data transfers in networking devices that utilize DDR2 memory.

Conclusion of CSPUA877BNLGI

The CSPUA877BNLGI is a robust Application Specific Clock/Timing IC designed for memory applications, particularly DDR2 SDRAM. Its unique features, such as differential signaling, PLL, and high operating frequency, provide significant advantages over similar models. While it is now considered obsolete, it remains a valuable component for legacy systems and applications requiring high-speed, low-power clock distribution. The CSPUA877BNLGI's reliability and performance make it a preferred choice for engineers and designers working with DDR2 memory systems.