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Logic Analyzers
Precisely capture, analyze, and debug high-speed digital signals
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PCIe Protocol Analyzers
Validate, test, and debug PCIe and Compute Express Link (CXL) interfaces
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PCIe Protocol Exercisers
Generate and simulate PCI traffic for testing performance and standards
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PCIe Protocol Test Backplanes
Provides a stable and signal-optimized interface for PCIe and CXL add-in cards
Logic Analyzers
Keysight logic analyzers enable you to precisely capture, analyze, and debug digital signals in embedded systems, memory designs, and high-speed digital interfaces. Select the logic analyzer you need by considering factors like the number of channels, maximum memory depth, and supported standards. Explore our range of portable and DDR logic analyzers to find the one that is right for your application.
PCIe Protocol Analyzers
Keysight LA5-class PCIe protocol analyzers include the P5552A and P5570A. They provide deep insight into PCIe communication, enabling you to capture, decode, and analyze high-speed data traffic with precision. These analyzers help identify protocol-level issues, validate system performance, and accelerate debugging in complex PCIe designs. By delivering comprehensive visibility into data transactions, timing, and protocol compliance, they help you validate communication between devices that use the PCIe interface.
PCIe Protocol Exercisers
Keysight LA5-class PCIe protocol exercisers include the P5551A and P5573A. These PCIe protocol exercisers generate and simulate PCIe traffic, enabling you to rigorously test and validate the performance and robustness of PCIe devices and systems. By emulating a wide range of real-world scenarios and error conditions, our PCIe protocol exercisers help you uncover design flaws, verify compliance, and optimize system behavior under various workloads.
PCIe Protocol Test Backplanes
Keysight LA5-class protocol backplanes include the P5563B, which provides a stable and signal-optimized interface for PCIe and CXL add-in cards. Our PCIe protocol backplane ensures that you can thoroughly evaluate device performance, signal integrity, and protocol compliance under real-world conditions. Its robust mechanical design and broad form-factor compatibility make it an imortant tool for accelerating development cycles and delivering next-generation computing, storage, and networking solutions with confidence.
Find the DDR Logic Analyzer for your Application in minutes
Find Compatible Software and Accessories for your Digital Protocol Solution
Choose from a wide range of compliance, debugging, and application-specific software or accessories like probes, cables, calibration kits, and more for your digital protocol analyzer.
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Frequently Asked Questions
A protocol analyzer is a test tool that captures, decodes, and analyzes communication between two or more devices operating over a specific protocol, such as PCIe, CXL, or DDR. It helps identify issues like protocol violations, timing errors, handshaking problems, and performance bottlenecks early in development. Engineers use protocol analyzers during design validation, interoperability testing, and compliance verification to ensure devices operate correctly across real-world scenarios and meet industry standards.
A protocol exerciser actively generates and emulates protocol traffic to simulate endpoint or root complex behavior in PCIe or CXL systems. Unlike passive analyzers, exercisers allow engineers to inject traffic patterns, control error scenarios, and simulate link training states to validate device behavior under stress conditions. They are critical for early-stage design validation, firmware development, link bring-up, and system qualification because they enable controlled, repeatable testing without requiring complete system environments.
A logic analyzer is a tool used to capture and analyze digital signals across multiple lines simultaneously, providing visibility into the digital behavior of complex systems. While oscilloscopes are designed for analog waveforms, logic analyzers help engineers visualize multi line digital activity, making them essential for debugging embedded systems, digital designs, communication buses, and microprocessor based architectures.
Logic analyzers help engineers:
- Detect and analyze timing issues, misalignments, glitches, or race conditions
- Understand digital interactions across multiple signals
- Debug complex systems like microcontrollers, FPGAs, serial buses, and memory interfaces
- Provide deeper insight when oscilloscopes fail to show multi‑line digital behavior
This makes them indispensable for ensuring accurate digital system performance.
Selecting the right logic analyzer is difficult because engineers must evaluate many variables—models, channel counts, timing/state modes, memory depth, triggering features, and protocol support. Even experts may hesitate due to concerns about compatibility, workflow fit, or missing capabilities for future projects.
There are several considerations engineers must evaluate when comparing logic analyzers:
- Number of channels (to match system complexity)
- Acquisition capabilities (timing/state modes)
- Triggering features
- Memory depth for long capture records
- Software capabilities and workflow compatibility
- Protocol or system‑specific support
Keysight logic analyzers come in portable models and models designed for DDR protocol system logic validation.
A logic analyzer captures raw digital signals, often at the pin or bus level, to provide detailed timing and state analysis of hardware behavior. It is especially useful for low-level hardware debug, timing verification, and tracking asynchronous events. In contrast, a protocol analyzer operates at a higher abstraction layer by decoding communication protocols like PCIe or DDR, presenting transactions, packets, and protocol-specific errors. Engineers typically use logic analyzers during early hardware bring-up and protocol analyzers for system-level validation, performance tuning, and interoperability debugging.