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Logic and Protocol Analyzer Software (64-bit)

See for yourself how easy logic and protocol analysis has become. Take a test drive by simply downloading the Keysight Technologies U4154A/B, U4301A/B, U4421A, U4431A, 16850 and 16860A series application software.

Review the Readme File for host PC recommendations and more detailed instructions.

Windows Service Pack Compatibility:

Logic and Protocol Analyzer software is Compatible with 64-bit operating systems only, it supports Windows 8.1, Windows 8, Windows 7, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2, Windows Server 2008 and Windows Vista 64-bit (SP2)

Once you have downloaded the software:

  • Install the application: Select Start, Run..., SetupLAXXXXXXXX.exe, OK. (The Keysight Logic Analyzer icon is placed on your desktop once setup is complete.)
  • Start the application: Double click the Keysight Logic Analyzer icon on your desktop.
  • View logic analyzer data: If you do not have U4154A/B, U4301A/B, U4421A, U4431A and 16850 series logic analyzer hardware to connect to, or you do not have data captured from one of the supported logic or protocol analyzers, select "Edit, Options, Create Data When Offline".
Release Date Version Version Description
2019-10-10 06.60.0001 DDR5 and LPDDR5 support in Memory Analysis Viewer, DDR/LPDDR Post Process Compliance Tool, Real-Time Compliance Tool and ONFi Analysis Viewer enhancements

How to Download

  • Click the download button, select file and save.

How to Install

  • Refer to Readme file in Supporting Documentation


  • Does Not Require a License

Supporting Documentation

Add-On Software / Utilities


Installs on:

PC / Instrument

Operating System

  • Windows 8
  • Windows 7
  • Windows Vista
  • Windows 10
  • Windows Server 2008
  • Windows Server 2008 R2
  • Windows Server 2012
  • Windows Server 2012 R2


  • Information Not Available

Supported Instruments

  • 16860A Series Portable Logic Analyzers, 16850 Series portable logic analyzers, U4154A/B 4 Gb/s AXIe-based Logic Analyzer Module, U4164A 136 ch 12.5 GHz TZ 5 GHz Timing 350 MHz base 2 Mb, U4301A/B analyzer module for PCIe 8 Gbps, U4421A protocol test module for MIPI D-PHY, U4431A MIPI M-PHY Protocol Analyzer