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    Last Modified: February 24, 2017

    I2C/SPI/SMBus Interface

    • Bus-powered USB interface for I2C, SMBus, and SPI communication; cable included
    • Compatible with Windows 7/Vista/XP/2000
    • 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
    • High-level API for NI LabVIEW, NI LabWindows™/CVI, and Microsoft Visual C/C++ 6.0
    • Available in OEM board-only version
    • 8 general-purpose digital I/O lines

    The USB-8451 is an interface for connecting to and communicating with I2C, SMBus, and SPI devices. With plug-and-play USB connectivity, the USB-8451 is a portable solution to communicate with consumer electronics and integrated circuits. It 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.

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