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National Instruments · PCI

PCI-6541

The National Instruments PCI-6541 is a PCI digital waveform generator/analyzer with a maximum clock rate of 50 MHz and selectable 1.8, 2.5, and 3.3 V logic levels. It belongs to the NI Digital Waveform Instruments family and is supported by NI-HSDIO software.

ManufacturerNational Instruments

ModelPCI-6541

Product TypeDigital waveform generator/analyzer

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PlatformPCI

Maximum clock rate50 MHz

Selectable logic levels1.8, 2.5, and 3.3 V

Digital connector68-pin VHDCI

Memory configurationModel variants: 1, 8, or 64 Mbit/channel; installed variant not identified

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Overview

Product overview

Key product information and technical features.

The PCI-6541 generates and acquires digital waveforms for digital-interface and functional-test systems. Its selectable logic levels allow use with different digital signal standards, while its PCI format distinguishes it from the separate PXI-6541 model.

NI identifies the PCI and PXI 6541/6542 devices as Synchronization and Memory Core-based instruments. System integration should account for the exact memory variant, NI-HSDIO software version, and supported cable/accessory combination.

Digital waveform generation and acquisition with a maximum clock rate of 50 MHz.
Selectable 1.8, 2.5, and 3.3 V logic levels.
Synchronization and Memory Core architecture with generation and acquisition data-delay settings.
68-pin VHDCI connectivity with manufacturer-documented cable and breakout accessory options.

Verified specifications

Technical data

Verified product specifications.

Maximum clock rate	50 MHz
Selectable voltage levels	1.8, 2.5, 3.3 V
Digital I/O connector	68-pin VHDCI
Model-family memory options	1, 8, or 64; installed configuration not identified Mbit/channel

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National Instruments

Manufacturer

PCI

Host platform

PCI-6541

Digital waveform generator/analyzer

Driver

PCI-6541 is explicitly listed as supported hardware in the NI-HSDIO 15.0 readme.

Confirm the installed memory variant and driver/OS combination; follow NI's accessory-specific connection limitations.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI 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 CompatibilityCompatibility Guide · ni.com

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Synchronous Communications and Timing Configurations in Digital DevicesTechnical resource

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FAQ

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Product-specific answers based on available technical information.

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

The PCI-6541 has a maximum clock rate of 50 MHz. NI lists the separate PCI-6542 model at 100 MHz.

Which logic voltage levels can be selected?

NI lists selectable levels of 1.8, 2.5, and 3.3 V for the PCI-6541.

How much onboard memory does this catalog record identify?

The specific installed memory capacity is not identified. NI documents PCI-6541 variants with 1, 8, and 64 Mbit per channel, so the physical board's part number must be checked to establish its configuration.

Which software driver supports the PCI-6541?

NI-HSDIO supports this instrument; the NI-HSDIO 15.0 readme explicitly lists PCI-6541 hardware. This historical support statement does not establish compatibility with every operating system or later driver release.