SN65ELT21D

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The SN65ELT21D is a differential line transceiver that has a wide variety of uses and applications. It is suitable for both industrial and consumer-level applications. It has two operating mode options which are either "normal" or "fault-safe" mode. The SN65ELT21D belongs to the larger family of logic translators, level shifters, which are widely used to match up standard logic levels between different devices.

The SN65ELT21D allows for high speed data transfer rates, low power consumption, and low-voltage operation to better meet the needs of today\'s smaller, lighter, and more power-efficient products. It works by transmiting and receiving differential signaling data over long distances. This provides for better performance and improved data error rates.

The SN65ELT21D specifically operates from a single +3.3V to +5V supply, and features a fault-safe mode in which the output is disabled during power-up or system faults. It also includes a level-shifting feature that accepts TTL/CMOS input levels, while providing LVDS output levels.

The circuit is optimized for EMI/susceptibility performance and has a wide frequency range. It is suitable for data bus and serial links, and is designed to meet the requirements for high speed data applications. Typical applications include point-to-point and multi-point links, communication networks, embedded systems and industrial automation equipment.

The working principle of the SN65ELT21D is relatively simple to understand. It works by transmitting a differential signal on the two LVDS channels, which is then converted to a TTL/CMOS compatible voltage level. The data is then passed on to the receiver, where it is converted back to the LVDS format. This makes possible a reliable, high speed data transfer over long distances.

The SN65ELT21D is a useful and versatile differential line transceiver, which can be applied in a variety of different applications. Its low power consumption and level-shifting capabilities make it an especially attractive choice for battery powered applications. Its wide range of operating modes makes it suitable for almost any data communication system, from industrial automation to embedded systems.

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