STMicroelectronics 74LCX244TTR - Low Voltage Buffer/Line Driver

The 74LCX244TTR from STMicroelectronics is a high-performance, low-voltage octal buffer and line driver designed to operate with a 3.3V power supply. It is part of the LCX family which offers 5V tolerant inputs and outputs, making it compatible with mixed-voltage systems. This device is particularly suitable for implementing buffer functions in memory address driving and data transmission in any 3.3V or mixed 3.3V/5V supply voltage application.

The 74LCX244TTR comes in a TSSOP (Thin Shrink Small Outline Package) format, under the part number suffix 'TTR', indicating that it is provided in tape and reel packaging, which is ideal for automated assembly processes. The device features an octal set of buffers with three-state outputs, which can be placed in a high-impedance state, effectively disconnecting the output from the circuit, a crucial feature for bus-oriented systems.

Key features of this product include:

• Low Voltage Operation: Designed to operate at 2.3V to 3.6V, which provides a power-efficient solution for modern low-voltage applications.
• High-Speed Operation: With a typical propagation delay of only 3.8ns at 3.3V, it offers high-speed performance for critical applications.
• Power-Down High-Impedance Inputs and Outputs: Ensures no excess power consumption when the device is powered down, which is essential for battery-operated devices.
• 5V Tolerant Inputs and Outputs: Allows interfacing with 5V logic levels without the risk of damage, providing greater flexibility in mixed-voltage environments.
• Support for Live Insertion and Withdrawal: Minimizes glitches and errors during hot-plugging, making it suitable for modular systems that require upgrades or maintenance without power shutdown.

The 74LCX244TTR is an ideal component for applications requiring a low-voltage, high-speed buffer or line driver, with the added benefit of 5V tolerant I/Os. Its robust design ensures compatibility with future 3.3V systems and interoperability with legacy 5V systems. Whether used in computing, telecommunications, or consumer electronics, the 74LCX244TTR is a reliable choice for buffering and driving lines with performance and power efficiency in mind.