854S015CKI-01LF

Overview

The Renesas 854S015CKI-01LF is a clock buffer and multiplexer IC featuring a 2:5 input-to-output ratio. It operates with a maximum frequency of 2 GHz and supports LVDS and LVPECL outputs. The device accepts CML, HCSL, LVDS, LVHSTL, and LVPECL inputs. It functions within a supply voltage range of 2.375V to 3.465V and an operating temperature of -40°C to 85°C. Packaged in a 24-VFQFN with exposed pad, this component is currently classified as obsolete by the manufacturer.

Feature Summary

• 2:5 fan-out buffer and multiplexer configuration
• Maximum operating frequency of 2 GHz
• Supports multiple differential input levels including LVDS, LVPECL, and CML
• Available in a compact 24-QFN (4x4 mm) surface-mount package

Applications

• High-speed clock distribution networks
• Data communication systems requiring low-jitter signal buffering
• Server and storage infrastructure timing circuits

Procurement Notes

This component is officially listed as obsolete by Renesas Electronics Corporation. Procurement should focus on verifying the authenticity of remaining stock from authorized distributors or secondary market suppliers. Buyers must confirm the specific manufacturing date code and ensure compliance with RoHS3 standards before acquisition.

Selection Notes

Designers requiring a 2:5 differential clock buffer with a 2 GHz limit should consider this part for legacy system maintenance. For new designs, verify if the 24-VFQFN package footprint is compatible with existing PCB layouts. Ensure the power supply rails can accommodate the 2.375V to 3.465V operating range specified for the VDD pins.

Part Context

The 854S015CKI-01LF belongs to the 854S015 family of high-performance clock buffers. It serves as a specialized solution for distributing reference clocks in complex digital systems. The 'KI' suffix indicates the specific 24-VFQFN package variant, while '01LF' denotes lead-free construction compliant with environmental directives.

Replacement Considerations

Renesas recommends the 8T39S06ANBGI as a functional replacement. This alternative is also manufactured by Renesas Electronics Corporation. Engineers should compare pin compatibility and electrical specifications against the original datasheet before implementing any substitution.