853S024AYLFT

Overview

The Renesas Electronics Corporation 853S024AYLFT is a high-performance clock fanout buffer IC designed for signal distribution. It features a 1:24 input-to-output ratio, supporting a maximum operating frequency of 1.5 GHz. The device accepts differential inputs in HCSL, LVDS, LVHSTL, LVPECL, or SSTL formats and provides 24 LVPECL outputs. It operates on a single supply voltage ranging from 3.135V to 3.465V. The component is housed in a 64-TQFP package with exposed pad (10x10 mm) and supports surface-mount installation. It functions within an ambient temperature range of 0°C to 70°C.

Feature Summary

• 1:24 Fanout Ratio: Distributes one differential clock input to twenty-four LVPECL outputs.
• High Frequency Operation: Supports clock frequencies up to 1.5 GHz.
• Flexible Input Compatibility: Accepts HCSL, LVDS, LVHSTL, LVPECL, and SSTL differential input levels.
• Single Supply Voltage: Operates efficiently with a VCC range of 3.135V to 3.465V.

Applications

• Clock distribution networks in high-speed digital systems.
• Signal buffering for communication infrastructure equipment.
• Data center server backplanes requiring low-skew clock distribution.
• Test and measurement instruments needing precise timing signals.

Procurement Notes

The 853S024AYLF variant is listed as End-of-Life (EOL) by the manufacturer, with EOL notices dated April 2018. The 'T' suffix indicates tape-and-reel packaging, while 'LF' denotes lead-free compliance. Verify current availability through authorized distributors, as stock may be limited or obsolete. Ensure compatibility with existing PCB footprints and thermal requirements for the 64-TQFP-EP package before procurement.

Selection Notes

Select this component when a single differential clock source must drive multiple LVPECL loads with minimal skew. It is suitable for designs requiring support for various input standards like LVDS or HCSL without external level shifting. Consider the 64-pin TQFP package constraints and the 0°C to 70°C commercial temperature range. For automotive or extended industrial temperatures, verify if alternative Renesas parts are available.

Part Context

This part belongs to the HiPerClockS family of high-performance clock solutions originally developed by IDT and acquired by Renesas Electronics. The 853S series is engineered for low-jitter and low-skew applications, ensuring signal integrity in high-speed data transmission environments. The specific model 853S024 provides a high channel count for complex system architectures.

Replacement Considerations

As the 853S024AYLF is discontinued, consult Renesas for direct replacements within the 853S series or newer clock buffer families. Verify pin compatibility and electrical specifications against potential substitutes such as the 853S024AGILF or similar 1:24 LVPECL buffers. Check for updated datasheets regarding performance parameters and packaging changes.