NI USB-8452 I2C and SPI Interface

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  • Compatible with Windows 7/Vista/XP/2000
  • I2C master interface with clock rates up to 3.33 MHz
  • SPI master interface with clock rates up to 50 MHz
  • Stream API optimized for exercising and validating analog-to-digital converters (ADCs)
  • High-level API for NI LabVIEW, NI LabWindows™/CVI, and Microsoft Visual C/C++ 6.0
  • 8 general-purpose digital I/O lines
The NI USB-8452 is an interface for connecting to and communicating with I2C and SPI devices. With plug-and-play USB connectivity, the USB-8452 is a bus-powered, 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, toggling LEDs, or strobing Convert and Data Ready lines common to analog converter chips.

You can physically place the USB-8452 more closely than PCI interfaces to I2C/SPI devices, which reduces I2C bus length and minimizes noise problems. Additionally, the interface provides
+5 V and GND to power circuits up to 20 mA with no external power supply. The I/O lines and Vref pins feature configurable voltage levels, ranging from 1.2 V to 3.3 V.



The mark LabWindows is used under a license from Microsoft Corporation. Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

Specifications Documents

Specifications Summary

General
Product Name USB-8452
Product Family I2C/SPI
Form Factor USB
Part Number 781964-03
Operating System/Target Windows
LabVIEW RT Support No
Voltage 5 VDC
Current 80 mA
Source Internally Powered
OEM Available Yes
Port Information
Number of Ports 1
Max Clock Rate (I2C) 3.33 MHz
Max Clock Rate (SPI) 50 MHz
Termination External
Special Features
Hardware Synchronization No
Hardware Timestamping No
Part Number Description Est Ship  US Dollars Qty
I2C and SPI Interface
781964-03USB-8452, I2C/SPI Interface w USB (2m) & 40-pin Flying Lead Cable2 - 5$ 571.00
781964-01USB-8452, I2C/SPI Interface, Board Only OEM with USB (2m) Cable12 - 20$ 495.00
781964-02USB-8452, I2C/SPI Interface, Board Only OEM w/out USB Cable12 - 20$ 463.00
Related Products and Accessories
152580-0R25Flying Lead Cable for USB-8452 - 40 pin12 - 20$ 41.00
184125-01Hi-Speed USB Cable, 1 m5 - 10$ 16.00
184125-02Hi-Speed USB Cable, 2 m5 - 10$ 25.00
782531-01USB-8452 Mounting Kit for Non OEM Modules12 - 20$ 26.00

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