DDR5 Main Memory Interposers | Nexus Technology, Inc.

Xcelerate™ Series Interposers – New

The Xcelerate^™ Series Interposers are designed to meet the rigorous demands of testing high-speed DDR5. Engineered for performance and precision, these interposers support data rates exceeding 10 Gbps. This product family empowers engineers to validate, debug, and optimize next-generation memory systems with unparalleled accuracy and efficiency.

Xcelerate^® Series Interposers

All Interposers

The available interposers are listed in the table, ordered by use (oscilloscope or logic analyzer), family (Xcelerate Series, XH Series, etc.), and by BGA package type.

Package	Balls	Interposers – Oscilloscope	Interposers – Logic Analyzer
x4/x8	78/82	x4/x8 Xcelerate™ Series – New 12G Interposer	x4/x8 XH Series Direct Attach
		x4/x8 XH Series Target Socketed
		x4/x8 XH Series Direct Attach
		x4/x8 XH Series EdgeProbe™
x16	102/106	x16 Xcelerate™ Series – New 12G Interposer	*
		x16 XH Series Target Socketed
		x16 XH Series Direct Attach
		x16 XH Series EdgeProbe™
RCD	240	RCD XH Series Direct Attach	*
Data Buffer	55	DB XH Series Direct Attach
Custom	Any	*	*

* If you don’t see what you need, please contact us for the most up to date information.

Summary of DDR5

DDR5 (Double Data Rate 5) is a high-performance memory standard designed primarily for servers, desktops, workstations, and high-performance computing systems. Introduced by JEDEC in 2020, it offers significant improvements over its predecessor, DDR4, including higher data rates (starting at 4800 MT/s and extending well beyond 8400 MT/s), increased bandwidth, improved power efficiency, and greater capacity. DDR5 achieves this through features such as a dual independent 32-bit channel architecture per module, on-die ECC, decision feedback equalization (DFE), and refined power-management schemes. It operates at a nominal 1.1 V and supports bank-group architectures that optimize concurrent data access, making it well-suited for bandwidth-intensive, high-throughput applications.

Higher speed grades of DDR5 continue to push performance boundaries. These variants deliver elevated data rates (exceeding 8800 MT/s in current JEDEC and platform implementations, with further extensions possible through interposer-supported validation), improved signal integrity, and tighter timing parameters. Optimizations include enhanced equalization techniques, refined clocking and training algorithms, and tighter voltage and timing margins. While retaining DDR5’s core architecture and efficiency improvements, these higher-speed implementations target demanding applications such as AI accelerators, high-end servers, and advanced workstations where maximum bandwidth and reliability are critical. DDR5 and its higher-speed derivatives remain central to meeting modern computing demands by balancing speed, capacity, and power efficiency for next-generation systems.

Interposers for Interfacing Test Equipment to the DDR5 Bus

LPDDR5 315 Ball XH Oscilloscope Direct Attach Interposer

Testing and validating DDR5 memory systems require specialized tools because of their high-speed operation and complex signaling. Interposers are critical hardware components designed to bridge the gap between test equipment (such as logic analyzers, oscilloscopes, or protocol analyzers) and the DDR5 memory bus. These interposers physically connect to the memory bus on a target device or module, providing a non-intrusive way to monitor, capture, and analyze signals without disrupting normal operation.

Nexus Technology’s DDR5 interposers are engineered to handle the standard’s high data rates, low-voltage signaling, and multi-channel architecture. These interposers enable engineers to perform tasks such as compliance testing, debugging memory-related issues, and verifying performance metrics (e.g., latency, bandwidth, and signal integrity). These interposers remain essential for ensuring reliability and performance in cutting-edge applications.

Attachment Service

Nexus Technology’s expert attachment service provides a ready-to-go test solution customized to your application. We will attach the interposer and any additional accessories to your application’s target. We can also power-on and test your application to confirm functionality.

Oscilloscope / Electrical Analysis Interposers

Nexus Technology’s oscilloscope interposers are designed to facilitate the testing and analysis of memory buses using an oscilloscope. These interposers act as a physical and electrical interface between the high-speed DDR5 memory system on a target device and the oscilloscope, enabling engineers to capture and analyze analog signals such as voltage waveforms, timing characteristics, and signal integrity at data rates exceeding 10 GT/s.

DDR5 interposers are engineered for:

Signal Integrity Analysis: Enable precise measurement of signal quality (e.g., eye diagrams, jitter, noise) to ensure the memory bus meets JEDEC specifications.
Timing Verification: They help validate critical timing parameters like setup/hold times, clock skew, and data alignment.
Debugging: Assist in diagnosing issues like crosstalk, reflections, or power supply noise affecting DDR5 performance.
Compliance Testing: Enable engineers to verify that DDR5 implementations adhere to industry standards.

Logic Analyzer / Protocol Compliance Analysis Interposers

Logic analyzer DDR5 interposers are specialized hardware tools designed to interface DDR5 memory buses with a logic analyzer, enabling the capture and analysis of digital signals and protocol-level behavior. These interposers connect the DDR5 memory system on a target device to a logic analyzer, allowing engineers to monitor and decode digital transactions.

DDR5 interposers for logic analyzers are engineered for:

Protocol Analysis: They capture and decode DDR5 bus transactions (e.g., commands, addresses, and data transfers) to verify correct operation and adherence to JEDEC standards.
Timing Validation: They measure digital timing relationships, such as clock-to-data alignment or command sequencing, at a logic level.
Debugging: They help identify issues like protocol violations, state machine errors, or data corruption in the memory system.
Performance Monitoring: They enable tracking of bus utilization, latency, and throughput for optimization purposes.