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National Instruments · PXI

PXI-6541

The National Instruments PXI-6541 is a PXI digital waveform generator/analyzer with a maximum clock rate of 50 MHz. It offers selectable 1.8, 2.5, and 3.3 V logic levels for digital interfacing.

ManufacturerNational Instruments

ModelPXI-6541

Product TypeDigital waveform generator/analyzer

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FunctionDigital waveform generation and acquisition

Maximum clock rate50 MHz

Selectable logic levels1.8, 2.5, and 3.3 V

DriverNI-HSDIO

Digital connector family68-pin VHDCI HSDIO

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Overview

Product overview

Key product information and technical features.

The PXI-6541 provides digital stimulus and response acquisition within a PXI test system. Its selectable logic levels support interfacing to digital electronics without treating it as an analog waveform generator.

The module uses NI's Synchronization and Memory Core architecture. NI identifies the 6541 among the digital instruments supporting data-delay adjustments for generation and acquisition timing.

Digital waveform generation and acquisition at clock rates up to 50 MHz.
Selectable 1.8, 2.5, and 3.3 V logic levels.
NI-HSDIO driver support for instrument programming.
Data-delay controls for adjusting generation and acquisition timing.

Verified specifications

Technical data

Verified product specifications.

Platform	PXI
Maximum clock rate	50 MHz
Maximum data rate	50 Mbit/s
Selectable logic levels	1.8, 2.5, 3.3 V
Digital I/O connector	68-pin VHDCI

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Compatibility

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National Instruments

Manufacturer

PXI

Modular instrumentation platform

PXI-6541

Digital waveform generator/analyzer

Software interface

NI-HSDIO; the NI-HSDIO 15.0 readme explicitly lists PXI-6541 support.

Confirm the unit's memory option, driver/OS combination, and required cable assembly before integration.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

Digital Waveform Instruments Product FlyerProduct Flyer · ni.com

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NI-HSDIO 15.0 ReadmeDriver Readme · download.ni.com

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Digital Instrument Cable and Accessory CompatibilityAccessory Compatibility Guide · ni.com

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Synchronous Communications and Timing Configurations in Digital DevicesTechnical resource

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Is the PXI-6541 a 50 MHz or 100 MHz instrument?

The PXI-6541 has a maximum clock rate of 50 MHz. The related PXI-6542 is the 100 MHz model.

Which selectable logic levels are documented for the PXI-6541?

NI's product flyer lists selectable levels of 1.8, 2.5, and 3.3 V.

Which driver supports the PXI-6541?

The PXI-6541 uses NI-HSDIO. NI's version 15.0 readme explicitly includes this model; verify the selected driver release against the intended operating system.

Can SCSI terminal blocks connect directly to the module?

NI specifies VHDCI accessories for direct connection. Its guide requires the 653x Cable Adapter for supported SCSI accessories, with SCB-68 and SCB-68A configured in Direct Feedthrough Mode.