The National Instruments USB-8452 I²C/SPI Interface Device (part numbers 781964-01, 781964-02, and 781964-03) facilitates seamless communication between I²C and SPI devices. Designed for portable applications, the USB-8452 is bus-powered and supports a high-speed interface with transfer rates up to 480 Mb/s. It features eight general-purpose, direction-controlled digital I/O lines that can function as either inputs or outputs via software control, with specifications varying based on logic levels.

The device supports a maximum SPI clock rate of 50 MHz with a transfer size between 4 and 64 bits, utilizing a push-pull output driver. For the I²C interface, it offers a maximum clock rate of 3.3 MHz and includes an open-drain output driver. Compatible with USB 2.0, the USB-8452 operates within an input voltage range of 4.5 to 5.25 V, with a maximum input current of 500 mA and a maximum output current of 20 mA. The product features one right angle USB series B receptacle and one right angle male IDE cable receptacle.

Weighing 2.8 ounces and measuring 2.86 x 3.62 x 0.8 inches, the USB-8452 operates effectively in temperatures ranging from 0 to 45 °C and can be stored in environments from –40 to 85 °C. The device is designed to withstand non-condensing humidity levels of 10 to 90% RH for operation and 5 to 90% RH for storage. A three-year warranty accompanies the product, and user manuals are available for download. Interested customers should contact a sales representative for pricing information.