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I2C/SPI-to-PC Interfaces

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  • Bus-powered USB interface for I2C, SMBus, and SPI communication
  • I2C master interface with clock rates up to 250 kHz
  • SMBus master interface with clock rates up to
    100 kHz
  • SPI master interface with clock rates up to 12 MHz
  • 8 general-purpose digital I/O lines; compatible with Windows Vista/XP/2000
  • High-Level API for NI LabVIEW, NI LabWindows™/CVI, and Microsoft Visual C/C++ 6.0

With the National Instruments USB-8451 interface, you can connect to and communicate with I2C, SMBus, and SPI devices. With plug-and-play USB connectivity, this interface is a portable solution to communicate with consumer electronics and integrated circuits. The NI USB-8451 also includes eight general-purpose digital I/O lines for a variety of applications, such as configuring the address of I2C devices or toggling LEDs.

The mark LabWindows is used under a license from Microsoft Corporation.

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