Overview

The 854S54I is a dual 2:1 and 1:2 Multiplexer. The 2:1 Multiplexer allows one of 2 inputs to be selected onto one output pin and the 1:2 MUX switches one input to one of two outputs. This device is useful for multiplexing multi-rate Ethernet PHYs which have 100M bit and 1000M bit transmit/receive pairs onto an optical SFP module which has a single transmit/receive pair. See Application Section for further information. The 854S54I is optimized for applications requiring very high performance and has a maximum operating frequency of 2.5GHz. The device is packaged in a small, 3mm x 3mm VFQFN package, making it ideal for use on space-constrained boards.

854S54I - Block Diagram
854S54I - Pinout
854S54I - Block Diagram
854S54I - Pinout
  • Three differential LVDS output pairs
  • Three differential LVPECL clock input pairs
  • PCLKx pair can accept the following differential input levels: LVPECL, LVDS
  • Maximum output frequency: 2.5GHz
  • Additive phase jitter, RMS: 0.053ps (typical)
  • Propagation delay: 480ps (maximum), QA/nQA 445ps (maximum), QBx/nQBx
  • Part-to-part skew: 200ps (maximum)
  • Full 2.5V supply mode
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    854S54AKILF
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 16 I Yes Tray
    854S54AKILFT
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 16 I Yes Reel
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