CSPUA877ANLG8

Application Specific Clock/Timing Overview

The CSPUA877ANLG8 is a clock buffer and driver manufactured by Renesas Electronics Corporation, designed for memory applications including DDR2 and SDRAM. It functions as a zero-delay buffer with an integrated PLL, providing a 1:10 input-to-output ratio. The device supports differential inputs and outputs, operating at a maximum frequency of 410MHz. It requires a supply voltage between 1.7V and 1.9V and operates within a temperature range of 0°C to 70°C. The component is housed in a 40-VFQFPN package with dimensions of 6x6 mm.

Application Specific Clock/Timing Feature Summary

• Integrated PLL for zero-delay buffering in DDR2 and SDRAM systems
• 1:10 clock distribution ratio with differential input/output support
• Maximum operating frequency of 410MHz
• Low voltage operation (1.7V ~ 1.9V) in a compact 40-VFQFPN package

Application Specific Clock/Timing Applications

• DDR2 memory clock distribution
• SDRAM clock buffering
• High-speed digital system timing

Application Specific Clock/Timing Procurement Notes

Verify the specific ordering suffix 'NLG8' against official Renesas documentation to confirm package type and tape/reel specifications. Ensure compatibility with the 40-VFQFPN exposed pad footprint during PCB layout. Confirm that the 1.7V-1.9V supply requirement aligns with the target system design.

Application Specific Clock/Timing Selection Notes

Select this component when a low-voltage, high-frequency clock driver with integrated PLL is required for DDR2 or SDRAM interfaces. The 40-VFQFPN package suits space-constrained designs. Verify that the 410MHz maximum frequency meets the system's clock speed requirements and that the 1:10 fan-out capability matches the number of memory devices.

Application Specific Clock/Timing Part Context

This part belongs to the family of clock drivers and buffers from Renesas Electronics. Similar models like the CSPU877ABVG8 offer comparable functionality but may differ in package style, such as using a BGA instead of QFN. The CSPUA877ANLG8 specifically utilizes the 40-pin QFN form factor for surface mount assembly.

Application Specific Clock/Timing Replacement Considerations

Check for direct pin-compatible alternatives within the Renesas portfolio that share the same electrical characteristics and package dimensions. Verify if other series members offer the same 1:10 ratio and differential I/O capabilities in a 40-VFQFPN housing.