Basic Information

• Model: PXI‑7954R (Part Number: 780563‑01)NI

• Form Factor: 3U single‑slot PXI module

• FPGA: Xilinx Virtex‑5 LX110

• Onboard Memory: 128 MB DDR2 DRAM (two independent 64 MB banks)

• I/O Channels: 132 single‑ended, configurable as 66 differential pairs

• Programming Environment: LabVIEW FPGA, LabVIEW Real‑Time, Windows

• Status: Discontinued; recommended replacement: PXIe‑7975R

• Typical Power Consumption: ~7.5 W

• Operating Temperature: 0 °C to 55 °C

Function and Positioning

Core Performance Parameters

FPGA Core

• FPGA Model: Xilinx Virtex‑5 LX110

• Logic Resources: 17,280 slices, 69,120 LUTs, 41,472 flip‑flops

• Block RAM: 4,608 kbit (embedded)

• DSP Slices: 64 DSP48 slices (18×18 multipliers)

• Clock Speed: Default 40 MHz; FPGA internal up to 500 MHz; I/O up to 100 MHz

• Configuration: LabVIEW FPGA, online reconfiguration supported

Digital I/O

• Channel Configuration: 132 single‑ended / 66 differential pairs

• I/O Standards: 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, LVDS, LVTTL, TTL

• Max Rate: Single‑ended 100 MHz; differential 200 MHz; PXI bus up to 400 MB/s

• Functions: Input/output, counter/timer, PWM, encoder, custom protocols, high‑speed streaming

Memory and Bus

• Onboard DRAM: 128 MB DDR2 (64 MB × 2 banks), max bandwidth 6.4 GB/s

• FIFO: 4,608 kbit block RAM

• DMA: 3 DMA channels, 32 DMA interrupt channels

• Synchronization: PXI trigger bus, RTSI; sync accuracy <25 ns

Physical and Electrical

• Dimensions: 3U (160 mm × 100 mm)

• Connector: 1 × dedicated FlexRIO adapter interfaceNI

• Power: +3.3 V, +5 V from PXI backplane

• Weight: ~210 g

Compatible Accessories

FlexRIO Adapter Modules

• NI‑6581: High‑speed digital I/O adapter, 100 MHz, 132 channels

• NI‑5781: High‑speed analog I/O adapter for signal generation/acquisition

• NI‑5761: 4‑channel, 250 MS/s, 14‑bit digitizer adapter (500 MHz bandwidth)

• NI‑5791: RF transceiver adapter for wireless communication testing

• NI FlexRIO Adapter MDK: Development kit for custom adapter design

Software

• NI‑FlexRIO Driver: Hardware configuration, FPGA programming, DMA management

• LabVIEW FPGA Module: Graphical FPGA development for complex real‑time logic

• LabVIEW Real‑Time: Deterministic control and high‑speed data processing

Application Fields

• Ultra‑High‑Speed Digital Test: High‑speed digital circuit verification, 100 MHz+ pulse I/O, custom high‑bandwidth digital bus emulation, semiconductor SoC validation.

• Advanced Real‑Time Signal Processing: Radar/sonar signal processing, 5G/LTE communication protocol decoding, real‑time FFT analysis, multi‑sensor data fusion, HIL simulation for complex systems.

• Aerospace and Defense: Avionics full‑interface testing, satellite communication signal processing, high‑speed flight data logging, electronic warfare (EW) signal analysis.

• Semiconductor Test: High‑speed IC validation, memory testing, SoC interface verification, wafer probe test systems with massive parallelism.

• Industrial Automation & Control: High‑speed multi‑axis motion control (10+ axes), complex encoder processing, real‑time industrial communication (EtherCAT, PROFINET), high‑speed machine vision integration.

• Scientific Research: High‑energy physics experiment control, high‑speed imaging data processing, custom scientific instrument development, large‑scale data acquisition systems。