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July 2025
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USB-8452, 8 DIO Lines, 3.33 MHz and 50 MHz Clock Rates, I2C/SPI Interface Device
Rated 4.52/5 | 20 ratings
Actual item may vary if no part number is provided on quote request.
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments USB-8452 I2C/SPI Interface Device
The USB-8452 (Part Numbers: 781964-01, 781964-02, 781964-03) is an Interface Device that can accomplish communication between inter-integrated circuit (I2C) devices and serial peripheral interface (SPI) devices. National Instruments (NI) designs the NI USB-8452 I²C/SPI Interface Device. The USB-8452 device is available with multiple part numbers: Part numbers 781964-01 and 781964-02 are both board only OEM versions of the USB-8452, but part number 781964-01 comes with a 2M USB cable while the other does not. Part number 781964-03 comes with a 2M US cable and a 40-pin flying lead cable. The USB-8452 I²C/SPI Interface Device is a bus-powered portable device that can be used for on-site instruments and electronics applications.
The NI USB 8452 I²C/SPI Interface Device features a high-speed interface with the transfer rate as high as 480 Mb/s. The USB-8452 device contains 8 general-purpose direction-controlled digital I/O lines. These lines can serve as input and/or output channels through software control. The I/O specifications of the DIO lines are different depending upon the logic levels. The NI USB 8452 can be used with a field-programmable gate array (FPGA) to achieve high-speed and effective interfacing. On the SPI side, the USB-8452 device can support up to 50 MHz clock rate at a transfer size in the range of 4 – 64 bits. The SPI side has a push-pull type driver output. On the I2C side, the National Instruments USB 8452 I²C/SPI Interface Device can support the clock rate of 3.3 MHz and an open-drain output driver.
The NI USB-8452 device is compatible with USB 2.0 connectivity. The USB 8452 I²C/SPI Interface Device has an input and output voltage range of 4.5 – 5.25 V. In addition, the NI USB-8452 has a maximum input current of 500 mA and a maximum output current of 20 mA. The device is equipped with 1 right angle USB series B receptacle and 1 right angle male IDE cable receptacle I/O connector.
The NI device weighs 2.8 oz, and measures 2.86 x 3.62 x 0.8 in. in physical dimensions. It has recommended operating and storage temperature ranges of 0 to 45 °C and –40 to 85 °C respectively, non-condensing operating and storage humidity ranges of 10 to 90% RH and 5 to 90% RH respectively.
| Model | USB-8452 |
|---|---|
| Manufacturer | National Instruments |
| Part Numbers | 781964-01, 781964-02, 781964-03 |
| Type | I²C/SPI Interface Device |
| Maximum I2C Clock Rate | 3.33 MHz |
| Maximum SPI Clock Rate | 50 MHz |
| Input Voltage | 4.5 V min, 5.25 V max |
| I/O Connectors | 1 Right Angle USB Series B Receptacle and 1 Right Angle Male IDE Cable Receptacle |
| Dimensions | 2.86 in. × 3.62 in. × 0.8 in. |
| Weight | 2.8 oz. |
| Warranty | Three Year Warranty |
| USB-8452 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Submit a Quote Request Today |
Associated part numbers for USB-8452:
National Instruments USB-8452 Frequently Asked Questions
Question: What does the blue LED on the USB-8452 indicate?
Answer: The blue LED of the Interface Device indicates the status of the USB. When this LED is off, it means that the USB-8452 is unplugged, disabled, or in suspend mode. If the LED is a solid blue, it is connected to an active USB port.
Question: What does the green LED on the USB-8452 indicate?
Answer: The green LED indicates the SPI/I2C interface's working status. If this LED is off, it means that the SPI/I2C is idle. If the LED is blinking green, it means the interface is active. If the LED is a solid green, it means the interface is waiting on a response from the slave.
Question: What modes does the SPI master interface support?
Answer: The two modes that the SPI master interface of the NI USB-8452 supports are standard mode and stream mode.
Question: What is the price of the USB-8542?
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