The NI PCIe-6536B is a high-speed digital I/O module for PCI Express systems designed for applications requiring precise digital signal manipulation and data acquisition. It provides 38 total channels—32 data channels plus 6 programmable function interface (PFI) channels—each independently programmable with per-channel directional control. The device delivers 100 MB/s maximum throughput and supports both synchronous and asynchronous timing modes with handshaking for bidirectional communication.
Technical Specifications
• Channels: 38 total (32 data, 6 PFI); each independently programmable
• Maximum Clock Rate: 12.5 MHz
• Maximum Throughput: 100 MB/s
• Bus Interface: PCI Express
• Voltage Levels: 2.5 V and 3.3 V generation; 5 V TTL logic compatible
• Current Drive: 32 mA per I/O channel
• Output Impedance: 50 Ω
• Input Impedance: 50 kΩ
• Input Protection: −1 V to +6 V
• Setup Time: 2.0 ns nominal (includes maximum data channel-to-channel skew)
• Power-Up State: Software programmable to Tristate, 0, or 1
– Key Features
• Per-channel driver enable/disable control
• Continuous data streaming architecture
• Setup and hold times include channel-to-channel skew and jitter specifications
• Built-in filtering for signal integrity and noise immunity
• Impedance matching for reduced jitter and glitches
– Typical Applications
• Semiconductor testing
• Consumer electronics testing
• Communications signal manipulation
• High-speed digital signal acquisition
– Compatibility & Integration
The PCIe-6536B integrates with NI-DAQmx drivers and supports legacy NI 6533 and 6534 applications through dedicated cable adapters, enabling integration into existing National Instruments software and hardware ecosystems.
