TUSB544IRNQT

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The TUSB544IRNQT is a flexible and reliable signal buffer device from Texas Instruments. The device is part of the company’s family of interface – signal buffers, repeaters, splitters, and it’s an integrated solution for isolation, level shifting, and signal conditioning in system designs.

This device includes five signal buffers that buffer an infinite number of inputs and outputs in I2C or SPI applications, depending on how the buffers are configured. The buffer pinouts are open-drain, which allows communication between different voltage domains and minimizes signal noise. The signal buffer supports standard and fast-mode I2C and SPI buses, and supports data transmission at up to 500 k bits/s.

The TUSB544IRNQT provides signal path integrity, signal signal isolation, and ensures a safe and efficient communication link between two nodes. It uses internal pull-up resistors for receiving I2C and SPI signals, eliminating the need for external pull-upresistors, simplifying system design and savingboard space. The device has an integrated voltage translator that supports a 2.5V to 3.3V and 5V supply, allowing it to operate in different voltage domains. It can be used in both bidirectional and unidirectional applications, providing maximum flexibility in designs which need to interface with multiple supply and logic levels.

The TUSB544IRNQT also provides a low jitter clock output that is independent of the input signals, ensuring a reliable and consistent timing signal. It also supports Power Delivery (PD) signaling, making it ideal for applications that require power management such as USB Type-C and Thunderbolt 3 cables.

The TUSB544IRNQT can be used in a wide range of applications, from consumer electronics to industrial equipment and automotive applications. It can be used to buffer RS232/422/485 serial data, provide isolated power/signal conditioning for PCIe,and for clock synchronization and buffering in multi-gigabit Ethernet and USB3.0 applications.

In addition to its use as a signal buffer, the TUSB544IRNQT can be used in true differential signal applications, such as LVDS and USB SuperSpeed signaling. It provides two buffers for each differential signal path, allowing for increased buffering performance, improved signal integrity, and improved EMI reduction.

The TUSB544IRNQT is a highly integrated and versatile device, making it an excellent choice for a broad range of applications. Thanks to its low power consumption, wide operating temperature range, and robust ESD protection, the device delivers reliable performance in a wide range of environments and applications. With an impressive selection of features and functionality, it’s an excellent choice for high performance, fault tolerant designs.

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