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USB-8451 | Legacy, Refurbished and New Surplus

USB-8451

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Modular Systems > National Instruments > Serial Interface Devices

Part Number USB-8451
Manufacturer/Brand National Instruments
Description: USB-8451, 8 DIO, full-speed I2C/SPI Interface Device
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National Instruments USB-8451 I2C/SPI Interface Device

The NI USB-8451 (Part Numbers: 779553-50 and 779553-01) is a bus-powered, full-speed I²C/SPI Interface Device. This device can be used as a means of connectivity and communication with peripheral interface devices, System Management Busses, and integrated circuits (I2C). The USB 8451 is a portable communication solution to be used with integrated circuits and consumer electronics. This Interface Device comes equipped with 8 Digital I/O lines. Each of the eight DIO lines can be programmed separately to be used as a static Digital Input or Digital Output line.  These general purpose digital lines can be utilized in a variety of applications such as I2C device configuration or toggling LEDs. The static DIO lines can also be used for monitoring or controlling digital signals. All samples of digital input lines and updates of digital output lines are software timed.

Unlike PCI interfaces, this Interface Device can be used in proximity of I2C/SPI devices, reducing l2C bus length and other problems related to noise. The NI USB 8451 is a self-sustained device and does not need an external power supply. The USB interface provides GND and +5 V to power its internal circuits. The USB 8451 National Instruments offers integrated protection against overcurrent, overvoltage, and undervoltage conditions on each SPI, DIO, and SPI CS signal. There are four SPI modes and an advanced API for custom I2C and SPi transactions. This National Instruments Interface Device comes with a USB series B receptacle and two 16-position screw terminal plug headers for I/O connectors.

ModelUSB-8451
ManufacturerNational Instruments
Part Numbers779553-50 and 779553-01
TypeI2C/SPI Interface Device
DIO Lines8
Maximum I2C Clock Rate250 kHz
Maximum SPI Clock Rate12 MHz
Dimensions2.50 in. × 3.35 in. × 0.91 in.
Weight3 oz.
WarrantyOne Year Warranty
USB-8451 ManualUser Manual and Maintenance Manual Available for Download
PriceContact a sales representative for a quote.

National Instruments USB-8451 Frequently Asked Questions

 

Question: What is the difference between the two part numbers for the USB 8451 National Instruments?

 

Answer: The first part number for the USB 8451 National Instruments, 779553-50, is not an enclosed device. However, the second part number, 779553-01, is an enclosed device.

 

Question: What is the NI USB 8451 driver?

 

Answer: The NI USB 8451 driver is NI-845x.

 

Question: What are the power requirements for the NI USB 8451?

 

Answer: The power requirements for the NI USB 8451 are 80 mA typical, 500 mA maximum for 4.10 to 5.25 VDC and 300 µA standby mode, A standby mode, 500 µA maximum for USB suspend.

 

Question: What is the output driver type on the NI USB-8451?

 

Answer: The output driver type on the NI USB-8451 is push-pull (active drive) or open-drain, software selectable.

  USB-8451 PDF Manuals


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Common Typos: HSB-8451, USG-8451, USN-8451, USB-84T1, USB-84Y1

USB-8451


USB-8451

USB-8451, 8 DIO, full-speed I2C/SPI Interface Device

In Stock | Ships 3-5 Days
Lowest Price Guarantee
2-3 Year Warranty Included
Free Ground Shipping
  Get Pricing













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1-800-915-6216

National Instruments USB-8451 I2C/SPI Interface Device

The NI USB-8451 (Part Numbers: 779553-50 and 779553-01) is a bus-powered, full-speed I²C/SPI Interface Device. This device can be used as a means of connectivity and communication with peripheral interface devices, System Management Busses, and integrated circuits (I2C). The USB 8451 is a portable communication solution to be used with integrated circuits and consumer electronics. This Interface Device comes equipped with 8 Digital I/O lines. Each of the eight DIO lines can be programmed separately to be used as a static Digital Input or Digital Output line.  These general purpose digital lines can be utilized in a variety of applications such as I2C device configuration or toggling LEDs. The static DIO lines can also be used for monitoring or controlling digital signals. All samples of digital input lines and updates of digital output lines are software timed.

Unlike PCI interfaces, this Interface Device can be used in proximity of I2C/SPI devices, reducing l2C bus length and other problems related to noise. The NI USB 8451 is a self-sustained device and does not need an external power supply. The USB interface provides GND and +5 V to power its internal circuits. The USB 8451 National Instruments offers integrated protection against overcurrent, overvoltage, and undervoltage conditions on each SPI, DIO, and SPI CS signal. There are four SPI modes and an advanced API for custom I2C and SPi transactions. This National Instruments Interface Device comes with a USB series B receptacle and two 16-position screw terminal plug headers for I/O connectors.

ModelUSB-8451
ManufacturerNational Instruments
Part Numbers779553-50 and 779553-01
TypeI2C/SPI Interface Device
DIO Lines8
Maximum I2C Clock Rate250 kHz
Maximum SPI Clock Rate12 MHz
Dimensions2.50 in. × 3.35 in. × 0.91 in.
Weight3 oz.
WarrantyOne Year Warranty
USB-8451 ManualUser Manual and Maintenance Manual Available for Download
PriceContact a sales representative for a quote.

National Instruments USB-8451 Frequently Asked Questions

 

Question: What is the difference between the two part numbers for the USB 8451 National Instruments?

 

Answer: The first part number for the USB 8451 National Instruments, 779553-50, is not an enclosed device. However, the second part number, 779553-01, is an enclosed device.

 

Question: What is the NI USB 8451 driver?

 

Answer: The NI USB 8451 driver is NI-845x.

 

Question: What are the power requirements for the NI USB 8451?

 

Answer: The power requirements for the NI USB 8451 are 80 mA typical, 500 mA maximum for 4.10 to 5.25 VDC and 300 µA standby mode, A standby mode, 500 µA maximum for USB suspend.

 

Question: What is the output driver type on the NI USB-8451?

 

Answer: The output driver type on the NI USB-8451 is push-pull (active drive) or open-drain, software selectable.

USB-8451 PDF Manuals & Diagrams

  USB-8451 PDF Manuals

FERRITE INSTALLATION FOR USB DEVICES.PDF

NI 845X HARDWARE AND SOFTWARE MANUAL.PDF

Why Buy From Apex Waves

Apex Waves Youtube Video

Delivery: UPS, FedEX and DHL – Free Fedex Ground on all orders
Overnight, Next Day Air or Expedited shipping options available
International delivery available
Same day shipping for in-stock on location
Warranty: All of our products are covered by our Apex Waves Warranty.
3 Year Warranty - New Surplus Parts
2 Year Warranty - Refurbished Parts
Returns: No hassle return policy.
Dedicated customer service team.
Payment: Authorize.Net paypal visa card master card american express card BB&T Bank better business bureau
Quick Quotes: Receive Price & Availability Today!
Calibration: Ask About Our Tiered Calibration Levels
Option & Modules: Confirm Your Requirements or Versions
Repair: Cost & Lead Time Available Upon Request for Service
Repair Evaluation: $150
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