The NI PXI-7813 and PXI-7813R are high-performance Digital Reconfigurable I/O (RIO) modules built around a Xilinx Virtex-II V3000 FPGA with 3 million gates. These cards deliver 160 bidirectional digital channels, each independently configurable as input, output, counter/timer, PWM, encoder input, or custom protocol interface. They excel in applications requiring custom timing, onboard signal processing, hardware-timed decision-making, and low-latency control within a PXI chassis.
Technical Specifications
FPGA
• Xilinx Virtex-II V3000, 3 million gates
• 28,672 flip-flops, 1,728 kbits embedded block RAM
• 96 multiplier blocks (18×18)
• Programmable via LabVIEW FPGA Module
Digital I/O
• 160 bidirectional channels, independently configurable
• 3.3 V and 5 V logic levels supported
• Output current: 4 mA per channel
• Overvoltage protection: −0.5 V to +7 V
• Minimum pulse width (input): 25 ns
• Minimum pulse width (output): 12.5 ns
Timing & Data Transfer
• Onboard clock: 40 MHz maximum
• Timing resolution: 25 ns
• 3 DMA channels with master/slave bus interface
• 196 KB onboard memory for pattern generation
Physical & Power
• Four 68-pin VHDCI connectors plus PXI bus connector
• Dimensions: 6.3 in. × 3.9 in.
• Power: +3.3 VDC at 850 mA, +5 VDC at 9 mA
• Operating temperature: 0 °C to 55 °C
– Key Features
• Custom timing and triggering with 25 ns resolution for onboard decision-making
• Hardware-timed data streaming via DMA
• Flexible I/O configuration supports sensor interfaces, signal generation, PWM, and encoder inputs
• Four high-density VHDCI connectors for signal routing
• Low minimum pulse widths enable high-speed digital control
– Typical Applications
• Hardware-in-the-loop (HIL) testing and simulation
• Bit error rate (BER) testing
• High-speed signal generation and custom protocol implementation
• Sensor simulation and real-time stimulus
• Precision timing and synchronization control
• Onboard signal processing and custom data acquisition
– Compatibility & Integration
Requires NI-RIO driver software. Compatible with LabVIEW FPGA Module and LabVIEW Real-Time Module. Supported accessories include SCB-68 shielded connector block and SHC68-68-RDIO and SH68-C68-S NI cables. Indoor use only.
