97U877AKLFT

Overview

The Renesas 97U877AKLFT is a clock driver and distribution component designed for DDR-II memory applications. It operates as a PLL clock driver with a 1:10 multiplication/division factor, supporting maximum output frequencies up to 370 MHz. The device functions within a supply voltage range of 1.7 V to 1.9 V and consumes approximately 300 mA of operating current. It is housed in a 52-CABGA package suitable for surface mount installation. The component supports an operating temperature range from 0°C to +70°C and includes humidity sensitivity features for standard SMD/SMT assembly processes.

Feature Summary

• Integrated PLL clock driver optimized for 1.8V DDR-II memory systems
• Provides 1:10 frequency division/multiplication ratio
• Supports maximum output frequency of 370 MHz
• Operates on 1.7V to 1.9V power supply with 300 mA current draw

Applications

• DDR-II memory subsystem clock generation
• High-speed data acquisition systems requiring precise timing
• Server and workstation memory controller interfaces

Procurement Notes

This component is listed as discontinued by the manufacturer. Availability is restricted, and Mouser indicates it is not currently sold in certain regions. Verification of end-of-life status and alternative sourcing through authorized distributors or secondary markets is required before integration into new designs.

Selection Notes

Select this part for legacy DDR-II designs requiring a 1:10 clock distribution ratio. Ensure the design accommodates the 1.7V–1.9V supply rail and 300 mA current consumption. Verify that the 52-CABGA footprint matches the PCB layout. Due to discontinuation, evaluate pin-compatible or functionally equivalent successors if long-term production support is necessary.

Part Context

The 97U877AKLFT belongs to the Renesas 97U877A series of clock drivers. It shares functional similarities with other DDR memory clock generators like the 98ULPA877AKLFT (DDR-I) and ICS97ULP877AHT, though voltage levels and specific interface standards may differ. It is distinct from PCIe clock buffers such as the 9DBL411AKLFT which serve different bus architectures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the part is discontinued, engineers must consult Renesas technical support for qualified replacements or perform full electrical and mechanical compatibility testing for any potential cross-reference components.