853S54AKI-01LFT

Overview

The 853S54AKI-01LFT is a high-performance clock multiplexer manufactured by Renesas Electronics. It functions as a 4:1 differential-to-LVPECL multiplexer, capable of operating at maximum output frequencies up to 2.5 GHz. The device accepts four selectable differential input pairs (PCLKx, nPCLKx) which support LVPECL, LVDS, and CML signal levels. Powered by a single supply voltage ranging from 3.135 V to 3.465 V, it features low additive phase jitter and guaranteed part-to-part skew characteristics. The component is housed in a 16-pin TSSOP package and operates within an ambient temperature range of -40°C to +85°C.

Feature Summary

• 4:1 Differential-to-LVPECL Multiplexer with 2.5 GHz maximum frequency
• Supports LVPECL, LVDS, and CML input signal levels
• Low additive phase jitter (RMS typical values specified in datasheet)
• Single 3.3V nominal supply operation (3.135V to 3.465V)

Applications

• High-speed clock distribution networks
• Data communication equipment requiring precise clock selection
• Telecommunications infrastructure systems

Procurement Notes

Verify the specific suffix '01' against official Renesas documentation to confirm pinout compatibility and electrical specifications, as suffixes often denote tape-and-reel packaging or specific revision variants. Ensure the ordering quantity aligns with standard carrier types such as tubes or reels. Confirm RoHS compliance status directly with the manufacturer's current product status page before finalizing procurement.

Selection Notes

Select this component when a design requires multiplexing four differential clock sources into a single LVPECL output stream. Verify that the input signals match the supported LVPECL, LVDS, or CML standards. Ensure the PCB layout accommodates the 16-pin TSSOP package dimensions. Check that the system power supply maintains the required 3.135 V to 3.465 V range for optimal performance.

Part Context

This part belongs to the 853S54I family of clock multiplexers from Renesas. It serves as a specialized solution for routing multiple clock sources in complex digital systems. The family is designed to provide low skew and jitter performance essential for high-speed serial data links and processor clocking applications.

Replacement Considerations

Consult the Renesas cross-reference guide for direct functional equivalents. Verify that any substitute part matches the 4:1 topology, LVPECL output, and 2.5 GHz speed requirement. Package compatibility must be confirmed if footprint constraints are strict.