The NI USB-8452 connects a USB host to I2C and SPI devices. Catalog part number 781964-02 identifies the board-only OEM version without an enclosure.
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Key product information and technical features.
The USB-8452 provides programmable reference voltages for interfacing with multiple logic families. Eight SPI chip-select lines and eight general-purpose digital I/O lines support peripheral selection and auxiliary digital control.
NI-845x driver software is required to operate the interface. Select a driver release appropriate for the host operating system and development environment.
Verified product specifications.
| Maximum I2C clock rate | 3.33 MHz |
|---|---|
| Maximum SPI clock rate | 50 MHz |
| Bus connection | USB 2.0 |
| Enclosed | No |
| Operating temperature | 0 to 45 °C |
| General-purpose digital I/O lines | 8 lines |
| SPI chip-select lines | 8 lines |
| Front-end connector | IDE-40; pin 20 omitted |
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Manufacturer
Host interface
I2C/SPI interface
NI-845x
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Product-specific answers based on available technical information.
No. The supplied catalog part number, 781964-02, corresponds to NI's board-only OEM version.
NI-845x driver software is required. NI's version 21.3 readme explicitly lists both USB-8452 and USB-8452 OEM hardware; check release-specific host compatibility before installation.