SN74LVT244BDBRE4

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Logic – Buffers, Drivers, Receivers, Transceivers

The SN74LVT244BDBRE4 is a logic device that falls into the class of Buffers, Drivers, Receivers, and Transceivers. It belongs to Texas Instruments’ low-voltage logic family, optimized for 3.3V VCC operations.

Application Field

The SN74LVT244BDBRE4 is a high-speed solution for low-voltage systems. It has been designed to provide a 3.3V-only supply operation, while still maintaining fast data transfer rates with very high noise immunity. As such, it is suited as a fast signaling logic device in general purpose circuit designs, where high speed and noise immunity are paramount. It is specifically designed to perform the buffering and bus driving functions of such circuits.

The broadband range of the SN74LVT244BDBRE4 is such that it can be used in a wide range of circuits, including in audio and video equipment, telecom systems, and appliances. With a wide range of industry standards approvals, including UL and CSA, it is well-equipped for a wide range of applications.

Working Principle

The SN74LVT244BDBRE4 is an octal bus transceiver with an integrated tri-state buffer function that operates from a single 3.3V supply. It uses the FET-based bus switch technology, in order to provide a high-speed data transfer rate. The integrated circuit consists of dual four-bit bidirectional transceiving buffers and supports multiple standard logic families.

At the core of this device is the 8-bit dual-source drive technology, which allows it to switch signals at up to 225MHz, while consuming very low power — 3.2mW typically. The SN74LVT244BDBRE4 also features an ultra-low propagation delay — 33ps typical. This ensures fast and reliable response, even when switching with high frequencies.

Further features of the SN74LVT244BDBRE4 include a Schmitt Trigger input with high hysteresis, an output enable function, and outputs in the form of open-drain, with integrated protection diodes. Combined, these features give the device a controllable output voltage range from -5V to +5V.

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