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FuturePlus Systems DDR4 FS2510

W5643A DDR5 Interposer exclusively for use with the Keysight U4164A logic analysis modules

The fastest DDR capture tools in the industry…AGAIN!

The W5643A is our newest and fastest logic analyzer probe used to test DDR5 memory. It is designed to work exclusively with 4 Keysight U4164A logic analysis modules operating designed to exceed 3.8 GB/s data rates.


  • Industry smallest DDR5 x4/x8 BGA interposer, designed to exceed 3.8 Gb/s data rates. (Provides connection to all (address, command, control and data) signals between a U4164A logic analysis system and JEDEC standard 78 ball DDR5 x4/x8 DRAM)
  • Provides observation of data traffic on industry-standard 78-ball DDR5 x4/x8 DRAM and provides access for DDR eye scans and burst scans of DDR5 signals
  • W5643A ships with a custom 78-ball DDR5 riser to provide clearance for surrounding devices (riser can be replaced with optional 3rd party socket – not provided)
  • Works with all solder finishes and is designed to tolerate lead-free soldering temperature profiles

Each W5643A Includes:

  • DDR5 x4/x8 78-ball BGA interposer
  • DDR5 x4/x8 78-ball BGA riser

Each W5643A DDR5 x4/x8 BGA interposer requires:

  • One U4164A logic analyzer module with Option -02G for quad sample state mode
  • Chassis for U4164A logic analyzer module(s) with controller or host PC
  • One U4208A probe/cable, 61-pin ZIF, no RC, 160-pin direct connect AND one U4209A probe/cable, 61-pin ZIF, no RC, 160-pin direct connect
  • Default configuration obtained from B4661A memory analysis software standard tools installation (no charge for standard software tools and default configurations)

Recommended for use with W5643A:

  • Qty(1) B4661A-5FP/-5TP/-5NP DDR5 Analysis and Compliance SW. Licensed option for rapid navigation, debug, and validation of DDR5 protocol
  • Memory depth option of choice for the U4164A logic analyzer module



FPS FS2600
Futureplus Systems Datasheet