9P935AFLF

Overview

The Renesas 9P935AFLF is a zero-delay buffer IC designed for DDR and DDR2 memory applications. It features a Phase Lock Loop (PLL) to synchronize input and output clocks with minimal skew. The device supports a maximum frequency of 600MHz and provides one circuit with a 1:6 input-to-output ratio. It accepts differential clock inputs and generates differential outputs. Power supply requirements range from 1.7V to 1.9V, and it operates within a temperature range of 0°C to 70°C. The component is housed in a 28-SSOP package.

Feature Summary

• Zero-delay buffer architecture for DDR/DDR2 memory synchronization
• Maximum operating frequency of 600MHz
• 1:6 input-to-output clock distribution ratio
• Differential input and differential output capabilities

Applications

• DDR memory systems
• DDR2 memory systems
• High-speed digital circuit timing

Procurement Notes

The 9P935AFLF is listed as obsolete by the manufacturer. Verification should confirm current availability through authorized distributors or surplus channels. Check for End-of-Life (EOL) notifications and Product Change Notices (PCN) regarding manufacturing discontinuance dated May 2019. Ensure compatibility with existing design specifications before procurement.

Selection Notes

Select this component when designing DDR or DDR2 memory interfaces requiring low-skew clock distribution. Verify that the system voltage aligns with the 1.7V to 1.9V supply range. Confirm that the 28-SSOP package fits the PCB layout constraints. Consider the 600MHz frequency limit relative to the target memory speed. Evaluate alternative components if active sourcing is required due to obsolescence.

Part Context

This part belongs to the 9P935 series of clock buffers manufactured by Renesas Electronics. It is specifically engineered for memory subsystems where precise clock alignment is critical. The device integrates PLL functionality to eliminate propagation delay between input and output signals, ensuring data integrity in high-speed memory transfers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, engineers must evaluate pin-compatible alternatives or redesign the clock distribution network using currently supported Renesas clock buffer families.