97U877AHLF

Overview

The Renesas 97U877AHLF is a clock driver and distribution component designed for 1.8V DDR-II applications, featuring an integrated PLL. It operates within a supply voltage range of 1.7 V to 1.9 V and supports a maximum output frequency of 370 MHz. The device utilizes a 1:10 multiplication/division factor and is housed in a CABGA-52 package. It functions within a commercial temperature range of 0°C to +70°C with a typical operating current of 300 mA.

Feature Summary

• Integrated PLL for 1.8V DDR-II clock generation
• Maximum output frequency of 370 MHz
• 1:10 input-to-output ratio configuration
• CABGA-52 surface-mount packaging

Applications

• DDR-II memory system clock distribution
• High-speed digital circuit timing reference
• Server and storage controller clocking

Procurement Notes

The 97U877AHLF is officially discontinued by Renesas Electronics. Availability is restricted to limited stock or surplus channels. Verification of authenticity and physical condition is required when sourcing from non-direct suppliers due to the end-of-life status.

Selection Notes

Designers should consider the ICS97ULP877BH or ICS97ULP877AHT as potential functional replacements within the same family. These alternatives offer similar clock driver capabilities but may feature updated specifications such as higher frequencies (up to 410 MHz) or different packaging options like VFBGA-52.

Part Context

This component belongs to the 97U877A series of low-power clock drivers. It was manufactured under the Integrated Circuit Systems (ICS) brand before its acquisition by Renesas. The part serves as a specialized solution for generating stable clock signals for synchronous dynamic random-access memory interfaces.

Replacement Considerations

Publicly confirmed substitute part numbers include ICS97ULP877BH and ICS97ULP877AHT. These devices share the same core functionality but may differ in pinout compatibility or electrical characteristics; datasheet comparison is necessary.