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National Instruments · USB

USB-6343

Name: USB-6343
Brand: National Instruments

The NI USB-6343 is an X Series USB multifunction DAQ device with 32 analog inputs, 4 analog outputs, 48 digital I/O lines, and four 32-bit counters/timers. Its 16-bit analog inputs support up to 500 kS/s aggregate acquisition.

ManufacturerNational Instruments

ModelUSB-6343

Product TypeUSB multifunction I/O device

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Analog inputs32 single-ended or 16 differential; 16-bit

Input sampling500 kS/s maximum aggregate; not simultaneous

Analog outputs4 channels; 16-bit; ±10 V

Digital I/O48 bidirectional lines

Counters/timers4 counters with 32-bit resolution

Host interfaceUSB 2.0

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Overview

Product overview

Key product information and technical features.

The USB-6343 combines analog acquisition, voltage output, digital I/O, and counter measurements in a USB-connected X Series device. NI identifies data logging, control, and test automation as product applications.

Selectable analog input ranges of ±0.2 V, ±1 V, ±5 V, and ±10 V.
Four analog voltage outputs with 16-bit resolution.
NI-STC3 timing provides independent analog and digital timing engines and retriggerable measurement tasks.
Counter functions include edge counting, pulse-width measurement, period measurement, and quadrature encoder measurements.

Verified specifications

Technical data

Verified product specifications.

Host interface	USB 2.0
Analog input channels	32 single-ended or 16 differential
Analog input resolution	16 bits
Maximum analog input sample rate	500 single-channel or multichannel aggregate kS/s
Simultaneous analog input sampling	No
Analog output channels	4
Analog output resolution	16 bits
Analog output range	±10 V
Maximum analog output update rate by active channel count	1 channel: 900; 2 channels: 840 per channel; 3 channels: 775 per channel; 4 channels: 719 per channel kS/s
Bidirectional digital I/O lines	48
Counters/timers	4 with 32-bit resolution

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National Instruments

Manufacturer

X Series / USB 2.0

DAQ family and host interface

USB-6343

Multifunction I/O device

Driver

NI-DAQmx

Confirm the device part number and terminal style before selecting wiring or accessories; this catalog record does not identify the connection variant.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

USB-6343 Product PageManufacturer Product Page · ni.com

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USB-6343 SpecificationsSpecifications · ni.com

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NI 63xx Cable and Accessory Compatibility GuideTechnical resource

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FAQ

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Product-specific answers based on available technical information.

Can all four analog outputs update at 900 kS/s?

No. The maximum is 900 kS/s with one active output. With all four outputs active, the specified maximum is 719 kS/s per channel.

Does this record identify the BNC or screw-terminal version?

No. NI documents both connection versions, but the supplied catalog record identifies only USB-6343. Confirm the terminal style and device part number before selecting connections.