98ULPA877AH

Application Specific Clock/Timing Overview

The Renesas 98ULPA877AH is a low-power, 1.8V DDR-II PLL clock driver designed for high-speed memory applications. It operates within a supply voltage range of 1.7 V to 1.9 V and supports maximum output frequencies up to 410 MHz. The device features a 1:10 multiplication/division factor with differential clock inputs and outputs. Packaged in a VFQFPN-40 format, it functions reliably across an industrial temperature range from -40°C to +85°C. This component serves as a specialized timing solution for distributing synchronized clock signals in complex digital systems requiring precise phase alignment.

Application Specific Clock/Timing Feature Summary

• Low power 1.8V operation with 1.7V to 1.9V supply range
• Maximum output frequency of 410 MHz
• 1:10 input-to-output ratio with differential I/O
• VFQFPN-40 surface mount package

Application Specific Clock/Timing Applications

• DDR-II memory subsystem clock distribution
• High-speed data acquisition systems
• Networking and communications equipment

Application Specific Clock/Timing Procurement Notes

The 98ULPA877AH is listed as obsolete or end-of-life by the manufacturer. Availability is restricted, and current stock levels are limited or unavailable through standard distributors. Verification of genuine sourcing and lifecycle status is critical before integration into new designs due to potential supply chain discontinuation risks.

Application Specific Clock/Timing Selection Notes

Designers should verify compatibility with DDR-II specifications and ensure the 1.8V power domain is stable. The VFQFPN-40 package requires appropriate PCB layout considerations for thermal management and signal integrity at frequencies up to 410 MHz. Alternative components may be necessary given the obsolete status of this specific part number.

Application Specific Clock/Timing Part Context

This component belongs to the 98ULPA877A series of clock drivers manufactured by Renesas Electronics. It is part of a family of timing solutions optimized for low-power, high-performance memory interfaces. The 'H' suffix typically denotes specific packaging or temperature grade variations within the broader product line.

Application Specific Clock/Timing Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, engineers must consult Renesas for recommended upgrades or perform full electrical and pinout compatibility analysis for any potential cross-references.