Technical Specifications

• Number of Channels:
  • Total Channels: 64 digital I/O channels
• I/O Voltage Levels:
  • Input Voltage Range: 0 to 3.3 V
  • Output Voltage Levels: 0 to 3.3 V (TTL-compatible)
• I/O Type:
  • Digital Input/Output: TTL (Transistor-Transistor Logic) levels
• I/O Characteristics:
  • Input: 3.3 V tolerant
  • Output Drive Current: 24 mA per channel (sink or source)
• Timing and Control:
  • Update Rate: Up to 100 MHz (depending on system configuration and bus speed)
  • Timing Modes: Includes static, change detection, and pattern generation modes
  • Triggering: Supports multiple triggering options for precise synchronization
• Connector Type:
  • I/O Connector: 68-pin VHDCI (Very High Density Cable Interconnect) connector
• Bus Interface:
  • PXIe interface for integration with other PXIe modules and systems
• Power Requirements:
  • Voltage: 3.3 V and 5 V (provided through the PXIe backplane)
• Software Support:
  • Compatible with NI LabVIEW and other National Instruments software for programming and control

Functional Features

• High-Speed Digital I/O:
  • The PXIe-6591 supports high-speed digital operations with update rates up to 100 MHz, enabling rapid and accurate digital signal processing.
• High Channel Count:
  • Provides 64 digital I/O channels, which allows for extensive digital data handling and control within a single module.
• TTL-Compatible I/O:
  • Operates with TTL voltage levels (3.3 V), making it compatible with a wide range of digital systems and logic.
• High Drive Current:
  • Each channel can drive up to 24 mA, sufficient for interfacing with TTL logic levels or driving external circuits.
• Advanced Timing and Control:
  • Includes various timing modes such as static, change detection, and pattern generation, providing flexibility for complex digital signal tasks.
• Precise Triggering:
  • Supports multiple triggering options for accurate synchronization with other signals or events.
• Compact and Reliable Connector:
  • Utilizes a 68-pin VHDCI connector for reliable and compact integration with external devices.
• Software Integration:
  • Fully supported by NI LabVIEW and other National Instruments software platforms, enabling efficient programming, system control, and data analysis.

Application Scenarios

• Digital Data Acquisition:
  • Suitable for high-density digital data acquisition tasks, including detailed logging, monitoring, and analysis of digital signals.
• Automated Testing:
  • Ideal for use in automated test systems to control and monitor digital signals, improving testing throughput and accuracy.
• Industrial Automation:
  • Can be used for interfacing with industrial control systems, sensors, and actuators, facilitating real-time operations and monitoring.
• Embedded Systems:
  • Integrates into embedded systems for high-speed digital control and data acquisition.
• Simulation and Control:
  • Valuable for simulation applications requiring precise digital signal control and generation.
• Prototyping and R&D:
  • Useful for research and development projects involving digital signal processing and prototype testing.