PCA9517DGKRG4

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The PCA9517DGKRG4 is a 16-bit, 256-KHz SPI™/I2C™-compatible level translator from NXP Semiconductors. It is a low-power, high-speed buffer, repeater, splitter, and expander solution for systems which require simultaneous communication in multiple I2C and SPI buses. Common applications for the PCA9517DGKRG4 include automotive, industrial, medical, and consumer applications.

The PCA9517DGKRG4 provides a number of features that make it ideal for these applications. To start, it can support up to four independent I2C and SPI buses, each up to 256-KHz in speed. The level translator features a low-power shutdown mode, where the power consumption is reduced to just 8 μA when enabled. It also features two different voltage ranges, 2.7V to 5.5V, which allows the device to operate in systems with a wide range of voltage domains.

The level translator features integrated FETs to increase the system’s noise immunity and reduce the number of component connections required. It also offers an adjustable de-skew mode that allows the user to fine-tune skew compensation settings to optimize system performance. Finally, the level translator is configured to meet I2C and SPI specifications and can be used with a wide range of microcontrollers, DSPs, FPGAs, and ASICs.

The PCA9517DGKRG4 operates using a simple pull-up/pull-down logic interface, making it easy to use and straightforward to set up. The device supports both hardware and software enable/disable inputs, which makes it simple to switch between I2C and SPI modes. In addition, the device can be configured to determine the specific mode of operation by sensing the presence of the pull-up resistor on the bus.

The PCA9517DGKRG4 is designed to handle multiple I2C and SPI buses simultaneously. It features an adjustable low-pass filter that can reduce voltage levels above 1 MHz, ensuring that it can support the high-speed data transfers that are common with I2C and SPI buses. The integrated FETs also improve noise immunity, which can be beneficial when dealing with multiple buses.

The PCA9517DGKRG4 is well-suited for automotive, industrial, medical, and consumer applications which require simultaneous communication in multiple I2C and SPI buses. It offers a low-power shutdown mode and an adjustable de-skew mode, as well as an adjustable low-pass filter to improve noise immunity. The device is easy to use and supports both hardware and software enable/disable inputs, allowing the user to switch quickly between I2C and SPI modes.

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