The NI PXI-6533 is a 32-bit digital I/O interface card for PXI systems, delivering high-speed pattern I/O and handshaking in a compact module. Built on the National Instruments DAQ-DIO ASIC, it provides 32 individually configurable lines grouped into four 8-bit ports for digital pattern generation, logic analysis, and functional testing. Each line sources or sinks up to 24 mA and operates at 5 V TTL/CMOS levels with 500 mV hysteresis.
Technical Specifications
• Digital I/O Lines: 32 individually configurable, grouped into four 8-bit ports; configurable as two 16-bit groups or one 32-bit group
• Data Transfer Rates: Up to 20 MHz maximum; handshaked I/O to 77.8 MB/s; pattern I/O to 13.3 MB/s or 1.8 Mbytes/s in PXI-7030/6533 configuration; DMA operates in 32-byte deep blocks
• Current: 24 mA sink/source per line; +5 VDC at 1.3 A module draw; 1 A available at I/O connector
• Voltage Compatibility: 5 V TTL/CMOS; input range –0.3 V to 5 V absolute maximum
• Triggering: TTL/CMOS pattern triggers with rising/falling edge detection; pattern match/mismatch detection; 10 ns minimum pulse width; start/stop and change detection
• Synchronization: PXI trigger bus and RTSI bus for clock and trigger signal distribution
• DMA: Bus-master operation with scatter-gather DMA capability
• Power: 4.65 to 5.25 VDC at 1 A
– Key Features
• 68-pin male SCSI-II connector
• PCI master/target with onboard linking
• Fits any 5 V peripheral PXI chassis slot
• NI-DAQ driver software included
– Typical Applications
Digital pattern generation, logic analysis, and functional testing of digital circuits and systems.
– Compatibility & Integration
Supported by NI-DAQmx and NI-DAQ Traditional driver software. Works with LabVIEW, LabWindows/CVI, Measurement Studio, ComponentWorks, VirtualBench, and LabVIEW RT for real-time applications.
