97U2A845AHLF

Application Specific Clock/Timing Overview

The Renesas 97U2A845AHLF is a DDR2 clock buffer and driver IC featuring zero-delay buffering and multiplexer capabilities. It operates with a maximum frequency of 410MHz and provides one output channel. The device supports differential input and output signals, utilizing SSTL-18 output standards. It functions within a supply voltage range of 1.7V to 1.9V and includes an integrated Phase-Locked Loop (PLL). Designed for memory applications, specifically DDR2 systems, it is housed in a 28-CABGA package measuring 4.0x4.5mm. The component is rated for operation between 0°C and 70°C.

Application Specific Clock/Timing Feature Summary

• Zero-delay buffer and multiplexer IC for DDR2 memory applications
• Maximum operating frequency of 410MHz with integrated PLL
• Differential input and output support with SSTL-18 outputs
• Supply voltage range of 1.7V to 1.9V in a 28-CABGA package

Application Specific Clock/Timing Applications

• DDR2 memory system clock distribution
• High-speed digital circuit timing synchronization
• Computer motherboard memory subsystems

Application Specific Clock/Timing Procurement Notes

This component is officially listed as End-of-Life (EOL) by the manufacturer. Verification of availability should focus on surplus or obsolete stock channels rather than standard active inventory. Buyers must confirm the specific revision level and packaging type, as legacy components may have varying handling requirements due to age. Cross-referencing with official Renesas EOL notices is recommended before procurement.

Application Specific Clock/Timing Selection Notes

Select this part only if the design requires a zero-delay buffer for DDR2 interfaces with a 410MHz limit. Ensure the power supply can maintain the strict 1.7V to 1.9V range. The 28-CABGA package requires appropriate PCB footprint design. Due to its discontinued status, alternative solutions with similar electrical characteristics should be evaluated for long-term production viability.

Application Specific Clock/Timing Part Context

The 97U2A845 series belongs to Renesas' family of high-performance clock buffers and drivers. These devices are engineered to minimize jitter and skew in high-speed digital systems. The specific model integrates multiplexing functions, allowing flexible clock routing for complex memory architectures common in earlier generation computing hardware.

Application Specific Clock/Timing Replacement Considerations

As the part is End-of-Life, direct substitutes are not publicly confirmed in the provided documentation. Engineers should consult Renesas for qualified replacement parts or evaluate generic clock buffers with compatible SSTL-18 outputs and similar frequency specifications.