The HD74LVC244ATELL-E is an octal buffer/line driver with three-state outputs manufactured by Renesas Electronics America. It is a member of the 74LVC family of logic gates, known for their low-voltage operation and high-speed performance. This device is designed to drive high-capacitance loads and is commonly used in bus interfacing and memory addressing applications.

Applications

• Bus drivers: Used as bus drivers to increase the driving capability of data lines.
• Line drivers: Employed as line drivers to transmit signals over long distances.
• Memory addressing: Utilized for memory addressing and decoding.
• Data buffering: Used for buffering data signals in various digital systems.
• Industrial control systems: Found in various control and automation circuits.

Features

• Octal buffer: Contains eight independent buffers.
• Three-state outputs: Allows the outputs to be in a high, low, or high-impedance state.
• Low-voltage operation: Operates over a wide supply voltage range, typically 1.65V to 5.5V.
• High-speed operation: Provides fast switching speeds for high-performance applications.
• Low power consumption: Minimizes power consumption.
• High output drive capability: Capable of driving high-capacitance loads.

Benefits

• Improved signal integrity: High output drive capability ensures signal integrity.
• Simplified bus interfacing: Three-state outputs allow for easy bus interfacing.
• Flexible operation: Wide operating voltage range provides flexibility.
• Reduced power consumption: Low power consumption minimizes power requirements.
• Enhanced system performance: Fast switching speeds contribute to enhanced system performance.

Technical Specifications: The HD74LVC244ATELL-E typically operates with supply voltages ranging from 1.65V to 5.5V and has a propagation delay of around 3-5 ns, depending on the supply voltage and load conditions. The output drive capability is typically ±24mA. It is commonly available in a 20-pin TSSOP (Thin Shrink Small Outline Package). The device has two enable inputs (1OE and 2OE), each controlling four of the buffers. When an enable input is low, the corresponding buffers are enabled; when it is high, the outputs are in the high-impedance state.