Agilent/Keysight U4972A

The Keysight U4972A is a discontinued DDR4 DRAM debug, compliance validation, and analysis solution. This bundle integrates logic analyzer modules, AXIe chassis, embedded controller, memory analysis software, and specialized DDR4 probing hardware into a systemized platform for in-depth protocol characterization. The solution supports substantial channel counts and memory depth, enabling detailed DDR4 signal acquisition and validation workflows.

Technical Specifications

• Logic analyzer modules: Three U4164A units with options for 4 GT/s maximum speed (U4164A-02G) or 8 Mb memory depth (U4164A-008)


• Probe channels: 34-channel soft touch pro direct connect capability


• Memory interposer: W4643A-004 DDR4 x4/x8 BGA, 78-ball, 2-wing (qty. 4)


• Probe/cables: U4208A and U4209A, 61-pin ZIF connectors, 160-pin direct connection to logic analyzer (qty. 2 each)


• Chassis: M9505A AXIe 2-slot with embedded system module (ESM) USB option


• Controller: M9537A AXIe embedded controller with keyboard, mouse, and Windows 10 option


• Software: B4661A memory analysis with licensed options B4661A-1FP through B4661A-4FP (node-locked, perpetual)

Key Features

• Multi-module logic analyzer configuration for parallel DDR4 bus acquisition


• Direct BGA interposer probing architecture supporting x4 and x8 DRAM configurations


• Dedicated memory protocol analysis software with configurable licensing tiers


• Integrated AXIe platform with embedded Windows 10 controller


• Dual-wing probe topology enabling simultaneous access to left and right signal wings

Warranty & Licensing

• Extended KeysightCare warranty: 3 years for U4164A, M9505A, and M9537A


• Standard warranty: 1 year for accessories and remaining components


• Software licenses: Node-locked, perpetual use model


• User-supplied monitor and video cable required

Typical Applications

• DDR4 DRAM protocol validation and compliance testing


• Memory subsystem debug and signal characterization


• High-speed digital bus analysis and timing validation