USB-8451
779553-01
779553-50
250 kHz I2C, 12 MHz SPI I2C/SPI Interface Device
Overview
The NI USB-8451 is a master interface for connecting to and communicating with inter-integrated circuit (I2C), System Management Bus (SMBus), and serial peripheral interface (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. The USB-8451 can be physically located more closely to I2C/SPI devices than PCI interfaces, reducing I2C bus length and minimizing noise problems. Additionally, the interface provides +5 V and GND to power circuits with no external power supply.
USB-8451 Details
Part Numbers (2) Price | 779553-01 | 779553-50 |
|---|---|---|
| Recommended replacement: 781964-03 | Recommended replacement: 781964-03 | |
| NI Lead Time | 12-13 weeks | 16-17 weeks |
| Maximum I2C Clock Rate | 250 kHz | 250 kHz |
| Maximum SPI Clock Rate | 12 MHz | 12 MHz |
| Enclosed | Yes | No |
| Bus Connection | USB 2.0 | USB 2.0 |
| Operating Temperature Range | 0 °C to 45 °C | 0 °C to 45 °C |
| Onboard Pull Ups | — | — |
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