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National Instruments · Computer-based PCI Express

PCIe-6535B

The NI PCIe-6535B is a 32-channel, 10 MHz digital I/O device for PCI Express computers. It supports continuous digital data streaming, selectable logic levels and per-channel direction control.

ManufacturerNational Instruments

ModelPCIe-6535B

Part Number782629-01

Product TypeDigital I/O device

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Digital channels32 bidirectional

Maximum clock rate10 MHz

Bus interfacePCI Express

I/O connectorVHDCI

Driver requirementNI-DAQmx 9.6.1 or later; verify operating-system and version support

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Overview

Product overview

Key product information and technical features.

Designed for computer-based digital interfacing, the PCIe-6535B supports pattern I/O, change detection and protocol emulation. NI also identifies image-sensor and display-panel interfacing and testing as relevant uses.

The selectable generation families are 2.5 V and 3.3 V, with 5 V TTL compatibility. The 5 V setting does not produce a nominal 5 V output high; NI specifies a typical 3.3 V high level into a high-impedance load.

Per-channel direction control for digital input and output assignments.
Continuous digital data streaming over PCI Express.
Single-ended digital signaling.
Six programmable function interface channels.

Verified specifications

Technical data

Verified product specifications.

Manufacturer part number	782629-01
Bidirectional digital channels	32 channels
Maximum clock rate	10 MHz
Maximum data-channel toggle rate	5 MHz
Generation voltage families	2.5 V and 3.3 V; 5 V TTL compatible
Maximum DC drive strength	±16 mA at 2.5 V; ±32 mA at 3.3 V
Onboard FIFO	2048 samples, independent of port size
Operating temperature	0 to 45 °C

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Compatibility

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National Instruments

Manufacturer

PCI Express

Computer bus interface

PCIe-6535B

Digital I/O device

Software

NI-DAQmx 9.6.1 or later is the documented minimum.

Do not confuse PCIe-6535B with the PXIe-6535 module. Confirm host interface, logic thresholds and cable configuration before integration.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI PCIe-6535B Product PageProduct Page · ni.com

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NI PXIe/PCIe-6535/6536/6537 and PCIe-6535B/6536B/6537B SpecificationsSpecifications · docs-be.ni.com

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NI 6535/6536/6537 User Manual — Channel ElectronicsUser Manual Section · ni.com

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Digital Instrument Cable and Accessory CompatibilityTechnical resource

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653x Cable Adapter GuideTechnical resource

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Does the PCIe-6535B generate a nominal 5 V output high?

No. NI specifies 2.5 V and 3.3 V generation families with 5 V TTL compatibility. For the 5 V setting, the typical output high is 3.3 V into a high-impedance load.

Which driver does the PCIe-6535B require?

NI specifies NI-DAQmx 9.6.1 or later. Check the selected driver's supported hardware, operating systems and development-environment versions before installation.

Can legacy SCSI accessories be used?

NI documents the 653x Cable Adapter for connecting this device family to supported SCSI accessories. Follow the specified cable and adapter combinations; SCB-68 and SCB-68A accessories require Direct Feedthrough Mode.