The Agilent/Keysight 34522B is a 32-bit digital I/O module engineered for parallel data acquisition and control within the HP 3235 Mainframe ecosystem. It provides 32 bidirectional TTL-compatible data lines organized into four independent 8-bit ports, each with dedicated handshake control. Ports operate flexibly as individual read/write channels or combine for 16-bit and 32-bit parallel transfers. The module delivers read/write rates exceeding 40 kHz, supporting time-critical applications requiring deterministic data exchange.
Technical Specifications
• Data Lines: 32 bidirectional, TTL-compatible
• Port Architecture: Four 8-bit ports with independent handshake lines
• Configurable Data Transfer: 8-bit, 16-bit, or 32-bit parallel operation
• Interrupt Lines: 8 edge-triggered
• High-Power Outputs: 16 FET outputs
• Data Rate: Greater than 40 kHz read/write
– Key Features
• Flexible port configuration enables independent or combined operation for mixed-width parallel transfers
• Edge-triggered interrupt architecture supports responsive event handling in control applications
• High-power FET outputs drive external loads without additional buffering
• TTL signal levels ensure compatibility with standard digital logic families
• Modular design integrates directly into mainframe-based test and measurement systems
– Typical Applications
• Automated test equipment (ATE) requiring parallel digital control and monitoring
• Real-time data acquisition from multiple sensor and device interfaces
• Industrial process control with deterministic timing requirements
• Hardware-in-the-loop simulation platforms
• Multi-channel digital signal routing and switching
– Compatibility & Integration
The 34522B is designed for the HP 3235 Mainframe, providing seamless integration into modular measurement platforms.
