Digital I/O
National Instruments provides a complete family of digital I/O products, with various timing, voltage and isolation options. Whether generating patterns to characterize a custom circuit, toggling control lines to automate a factory floor, or prototyping a digital design, NI digital I/O devices can meet the needs of your test, control, and design applications.
Featured Items
Digital I/O with NI LabVIEW
Learn how to use the built-in counters and digital I/O on USB data acquisition devices.
View the 4-minute demo50 and 25 MHz High-Speed Digital I/O Modules
Learn about NI digital I/O for PCI Express and PXI Express
Compare pricing and specsStimulus Response Test
Learn how to perform real-time bit error rate calculation with NI 655x devices
Watch the webcastProduct Results (33 Devices/Modules)
NI USB-6525
8 Solid-State Relays, 8 DI, Counter, Ch-to-Ch Isolated
Features | Specifications | Data Sheet
$ 319
| Digital I/O: | 8 DI/8 DO |
| Counter/Timers: | 1 · 32 bits · 5 kHz |
| Measurement Type: | Digital |
PXI-6528 (48-Ch, 60 V)
Industrial Digital l/O - 24 Input, 24 Output, Channel-Channel Isolated
Features | Specifications | Data Sheet
$ 745
| Digital I/O: | 24 DI/24 DO |
| Measurement Type: | Digital |
NI PCI-6518 (16 Inputs, 16 Source Outputs)
Low-Cost 37-Pin Industrial Digital I/O -- 30 V, Bank-Isolated
Features | Specifications | Data Sheet
$ 330
| Digital I/O: | 16 DI/16 DO |
| Measurement Type: | Digital |
NI PXI-7813R
R Series Digital RIO with Virtex-II 3M Gate FPGA
Features | Specifications | Data Sheet
$ 2,745
| Digital I/O: | 160 DIO · 40 MHz |
| Counter/Timers: | 160 · 64 bits · 40 MHz |
| Measurement Type: | Digital, Filters, Frequency, Quadrature encoder |
NI USB-6509
High-Density Industrial Digital I/O for USB (96 Ch, 24 mA)
Features | Specifications | Data Sheet
$ 449
| Digital I/O: | 96 DIO |
| Measurement Type: | Digital |
NI PXI-6529
Industrial Digital I/O - 48 Inputs, Channel-Channel Isolated
Features | Specifications | Data Sheet
$ 745
| Digital I/O: | 48 DI |
| Measurement Type: | Digital |
NI PCI-7811R
R Series Digital RIO with Virtex-II 1M Gate FPGA
Features | Specifications | Data Sheet
$ 1,605
| Digital I/O: | 160 DIO · 40 MHz |
| Counter/Timers: | 160 · 64 bits · 40 MHz |
| Measurement Type: | Digital |
NI PCI-7813R
R Series Digital RIO with Virtex-II 3M Gate FPGA
Features | Specifications | Data Sheet
$ 2,535
| Digital I/O: | 160 DIO · 40 MHz |
| Counter/Timers: | 160 · 64 bits · 40 MHz |
| Measurement Type: | Digital |
NI PXI-7811R
R Series Digital RIO with Virtex-II 1M Gate FPGA
Features | Specifications | Data Sheet
$ 1,710
| Digital I/O: | 160 DIO · 40 MHz |
| Counter/Timers: | 160 · 64 bits · 40 MHz |
| Measurement Type: | Digital, Filters, Frequency, Quadrature encoder |
NI USB-6501 (24-ch, 8.5 mA)
Low-Cost USB Digital I/O Device
Features | Specifications | Data Sheet
$ 99
| Digital I/O: | 24 DIO |
| Counter/Timers: | 1 · 32 bits · 5 MHz |
| Measurement Type: | Digital |
NI PXI-6513 (64 Sink Outputs)
Low-Cost Industrial Digital l/O - 30 V, Bank-Isolated
Features | Specifications | Data Sheet
$ 496
| Digital I/O: | 64 DO |
| Measurement Type: | Digital |
NI PXI-6514 (32 Inputs, 32 Source Outputs)
Low-Cost Industrial Digital l/O -- 32 Source/Sink Input, 32 Source Output
Features | Specifications | Data Sheet
$ 496
| Digital I/O: | 32 DI/32 DO |
| Measurement Type: | Digital |
NI PXI-6515 (32 Inputs, 32 Sink Outputs)
Low-Cost Industrial Digital l/O -- 30 V, Bank-Isolated
Features | Specifications | Data Sheet
$ 496
| Digital I/O: | 32 DI/32 DO |
| Measurement Type: | Digital |
NI PXI-6521
150 V Mechanical Relay Outputs, 30 V Digital Inputs
Features | Specifications | Data Sheet
$ 570
| Digital I/O: | 8 DI/8 DO |
| Measurement Type: | Digital |
NI PCI-6520
8 Mechanical Relay Outputs, 8 Ch-Ch Isolated Digital Inputs
Features | Specifications | Data Sheet
$ 330
| Digital I/O: | 8 DI/8 DO |
| Measurement Type: | Digital |
NI PCI-6519 (16 Inputs, 16 Sink Outputs)
Low-Cost 37-Pin Industrial Digital I/O -- 30 V, Bank-Isolated
Features | Specifications | Data Sheet
$ 330
| Digital I/O: | 16 DI/16 DO |
| Measurement Type: | Digital |
NI PCI-6521
150 V Mechanical Relay Outputs, 30 V Digital Inputs
Features | Specifications | Data Sheet
$ 454
| Digital I/O: | 8 DI/8 DO |
| Measurement Type: | Digital |
NI PXI-6509
Low-Cost, High-Current, 96 Ch, 5 V TTL/CMOS Digital I/O
Features | Specifications | Data Sheet
$ 434
| Digital I/O: | 96 DIO |
| Measurement Type: | Digital |
NI PXI-6511 (64 Sink/Source Inputs)
Low-Cost Industrial Digital Input -- 30 V, Bank-Isolated
Features | Specifications | Data Sheet
$ 496
| Digital I/O: | 64 DI |
| Measurement Type: | Digital |
NI PXI-6512 (64 Source Outputs)
Low-Cost Industrial Digital l/O -- 30 V, Bank-Isolated
Features | Specifications | Data Sheet
$ 496
| Digital I/O: | 64 DO |
| Measurement Type: | Digital |
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